diff --git a/extensions/dhooks/dynhooks_sourcepawn.cpp b/extensions/dhooks/dynhooks_sourcepawn.cpp
index 9f568f20..8b148fe7 100644
--- a/extensions/dhooks/dynhooks_sourcepawn.cpp
+++ b/extensions/dhooks/dynhooks_sourcepawn.cpp
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #include "dynhooks_sourcepawn.h"
 #include "util.h"
 #include <memory>
diff --git a/extensions/dhooks/dynhooks_sourcepawn.h b/extensions/dhooks/dynhooks_sourcepawn.h
index be8a179d..43428a4d 100644
--- a/extensions/dhooks/dynhooks_sourcepawn.h
+++ b/extensions/dhooks/dynhooks_sourcepawn.h
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #ifndef _INCLUDE_DYNHOOKS_SP_H_
 #define _INCLUDE_DYNHOOKS_SP_H_
 
diff --git a/extensions/dhooks/extension.cpp b/extensions/dhooks/extension.cpp
index a48ee7b8..3d0ff9b7 100644
--- a/extensions/dhooks/extension.cpp
+++ b/extensions/dhooks/extension.cpp
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #include "extension.h"
 #include "listeners.h"
 #include "dynhooks_sourcepawn.h"
diff --git a/extensions/dhooks/extension.h b/extensions/dhooks/extension.h
index 003a05b5..2d3f3907 100644
--- a/extensions/dhooks/extension.h
+++ b/extensions/dhooks/extension.h
@@ -1,14 +1,14 @@
 /**
  * vim: set ts=4 :
  * =============================================================================
- * SourceMod Sample Extension
- * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
  * =============================================================================
  *
  * This program is free software; you can redistribute it and/or modify it under
  * the terms of the GNU General Public License, version 3.0, as published by the
  * Free Software Foundation.
- * 
+ *
  * This program is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
diff --git a/extensions/dhooks/listeners.cpp b/extensions/dhooks/listeners.cpp
index 02d253cb..41a8ef10 100644
--- a/extensions/dhooks/listeners.cpp
+++ b/extensions/dhooks/listeners.cpp
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #include "listeners.h"
 #include "vhook.h"
 
diff --git a/extensions/dhooks/listeners.h b/extensions/dhooks/listeners.h
index b9484806..2a624fb9 100644
--- a/extensions/dhooks/listeners.h
+++ b/extensions/dhooks/listeners.h
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #ifndef _INCLUDE_LISTENERS_H_
 #define _INCLUDE_LISTENERS_H_
 
diff --git a/extensions/dhooks/natives.cpp b/extensions/dhooks/natives.cpp
index b447accf..72abe9e7 100644
--- a/extensions/dhooks/natives.cpp
+++ b/extensions/dhooks/natives.cpp
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #include "natives.h"
 #include "util.h"
 #include "dynhooks_sourcepawn.h"
diff --git a/extensions/dhooks/natives.h b/extensions/dhooks/natives.h
index 177865dd..6b90064c 100644
--- a/extensions/dhooks/natives.h
+++ b/extensions/dhooks/natives.h
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #ifndef _INCLUDE_NATIVES_H_
 #define _INCLUDE_NATIVES_H_
 
diff --git a/extensions/dhooks/sdk-hacks.h b/extensions/dhooks/sdk-hacks.h
index 74880270..e2ddb6ee 100644
--- a/extensions/dhooks/sdk-hacks.h
+++ b/extensions/dhooks/sdk-hacks.h
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #ifndef _INCLUDE_SDK_HACKS_H_
 #define _INCLUDE_SDK_HACKS_H_
 
diff --git a/extensions/dhooks/signatures.cpp b/extensions/dhooks/signatures.cpp
index f3995e76..e5ddd8b9 100644
--- a/extensions/dhooks/signatures.cpp
+++ b/extensions/dhooks/signatures.cpp
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #include <signatures.h>
 
 SignatureGameConfig *g_pSignatures;
diff --git a/extensions/dhooks/signatures.h b/extensions/dhooks/signatures.h
index 1668d231..de9ce7cd 100644
--- a/extensions/dhooks/signatures.h
+++ b/extensions/dhooks/signatures.h
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #ifndef _INCLUDE_SIGNATURES_H_
 #define _INCLUDE_SIGNATURES_H_
 
diff --git a/extensions/dhooks/smsdk_config.h b/extensions/dhooks/smsdk_config.h
index 661a1579..a65c6e66 100644
--- a/extensions/dhooks/smsdk_config.h
+++ b/extensions/dhooks/smsdk_config.h
@@ -1,14 +1,14 @@
 /**
  * vim: set ts=4 :
  * =============================================================================
- * SourceMod Sample Extension
- * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
  * =============================================================================
  *
  * This program is free software; you can redistribute it and/or modify it under
  * the terms of the GNU General Public License, version 3.0, as published by the
  * Free Software Foundation.
- * 
+ *
  * This program is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
diff --git a/extensions/dhooks/util.cpp b/extensions/dhooks/util.cpp
index f1facf1f..9b08fa8a 100644
--- a/extensions/dhooks/util.cpp
+++ b/extensions/dhooks/util.cpp
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #include "util.h"
 
 void * GetObjectAddr(HookParamType type, unsigned int flags, void **params, size_t offset)
diff --git a/extensions/dhooks/util.h b/extensions/dhooks/util.h
index 8b1e068e..a168c6ba 100644
--- a/extensions/dhooks/util.h
+++ b/extensions/dhooks/util.h
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #ifndef _INCLUDE_UTIL_FUNCTIONS_H_
 #define _INCLUDE_UTIL_FUNCTIONS_H_
 
diff --git a/extensions/dhooks/vfunc_call.h b/extensions/dhooks/vfunc_call.h
index 09cb6849..1604c13e 100644
--- a/extensions/dhooks/vfunc_call.h
+++ b/extensions/dhooks/vfunc_call.h
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #ifndef _INCLUDE_VFUNC_CALL_H_
 #define _INCLUDE_VFUNC_CALL_H_
 
diff --git a/extensions/dhooks/vhook.cpp b/extensions/dhooks/vhook.cpp
index 7eec21db..1be1d528 100644
--- a/extensions/dhooks/vhook.cpp
+++ b/extensions/dhooks/vhook.cpp
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #include "vhook.h"
 #include "vfunc_call.h"
 #include "util.h"
diff --git a/extensions/dhooks/vhook.h b/extensions/dhooks/vhook.h
index 44a76d1b..3340049c 100644
--- a/extensions/dhooks/vhook.h
+++ b/extensions/dhooks/vhook.h
@@ -1,3 +1,34 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Dynamic Hooks Extension
+ * Copyright (C) 2012-2021 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
 #ifndef _INCLUDE_VHOOK_H_
 #define _INCLUDE_VHOOK_H_