Index: /AE/Installer/trunk/source/installer.cpp
===================================================================
--- /AE/Installer/trunk/source/installer.cpp	(revision 555)
+++ /AE/Installer/trunk/source/installer.cpp	(revision 556)
@@ -758,5 +758,5 @@
 				}
 				if (!skip_folder && !exists("../GameDataFolder/IGMD/" + dir_itr->path().filename() + "/ignore.txt")) {
-					remove_all( "../GameDataFolder/IGMD/" + dir_itr->path().filename() );
+					if(!pkg.hasAddon) remove_all( "../GameDataFolder/IGMD/" + dir_itr->path().filename() );
 					Sleep(100);
 					create_directory( "../GameDataFolder/IGMD/" + dir_itr->path().filename());