diff --git a/common/port.h b/common/port.h
index 435de115..ae60122f 100644
--- a/common/port.h
+++ b/common/port.h
@@ -47,14 +47,8 @@ GNU General Public License for more details.
 		#define O_BINARY    0
 		#define O_TEXT      0
 		#define _mkdir( x ) mkdir( x, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH )
-		#define LoadLibrary( x ) dlopen( x, RTLD_NOW )
-		#define GetProcAddress( x, y ) dlsym( x, y )
-		#define FreeLibrary( x ) dlclose( x )
 	#elif XASH_DOS4GW
 		#define PATH_SPLITTER "\\"
-		#define LoadLibrary( x ) (0)
-		#define GetProcAddress( x, y ) (0)
-		#define FreeLibrary( x ) (0)
 	#endif
 
 	typedef void* HANDLE;
diff --git a/engine/common/system.c b/engine/common/system.c
index 6916fdd1..c41854e8 100644
--- a/engine/common/system.c
+++ b/engine/common/system.c
@@ -34,6 +34,8 @@ GNU General Public License for more details.
 
 #include "menu_int.h" // _UPDATE_PAGE macro
 
+#include "library.h"
+
 qboolean	error_on_exit = false;	// arg for exit();
 #define DEBUG_BREAK
 
@@ -272,7 +274,8 @@ qboolean Sys_LoadLibrary( dll_info_t *dll )
 			*func->func = NULL;
 	}
 
-	if( !dll->link ) dll->link = LoadLibrary ( dll->name ); // environment pathes
+	if( !dll->link )
+		dll->link = COM_LoadLibrary( dll->name, false, true ); // environment pathes
 
 	// no DLL found
 	if( !dll->link )
@@ -307,7 +310,7 @@ void* Sys_GetProcAddress( dll_info_t *dll, const char* name )
 	if( !dll || !dll->link ) // invalid desc
 		return NULL;
 
-	return (void *)GetProcAddress( dll->link, name );
+	return (void *)COM_GetProcAddress( dll->link, name );
 }
 
 qboolean Sys_FreeLibrary( dll_info_t *dll )
@@ -324,7 +327,7 @@ qboolean Sys_FreeLibrary( dll_info_t *dll )
 	}
 	else Con_Reportf( "Sys_FreeLibrary: Unloading %s\n", dll->name );
 
-	FreeLibrary( dll->link );
+	COM_FreeLibrary( dll->link );
 	dll->link = NULL;
 
 	return true;
diff --git a/game_launch/game.cpp b/game_launch/game.cpp
index 347f1973..5ebac7e8 100644
--- a/game_launch/game.cpp
+++ b/game_launch/game.cpp
@@ -23,6 +23,9 @@ GNU General Public License for more details.
 
 #if XASH_POSIX
 #define XASHLIB "libxash." OS_LIB_EXT
+#define LoadLibrary( x ) dlopen( x, RTLD_NOW )
+#define GetProcAddress( x, y ) dlsym( x, y )
+#define FreeLibrary( x ) dlclose( x )
 #include <unistd.h> // execve
 #elif XASH_WIN32
 #define XASHLIB "xash.dll"
@@ -46,7 +49,7 @@ __declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
 #endif
 
 #if XASH_WIN32 || XASH_POSIX
-#define USE_EXECVE_FOR_CHANGE_GAME 1
+#define USE_EXECVE_FOR_CHANGE_GAME 0
 #else
 #define USE_EXECVE_FOR_CHANGE_GAME 0
 #endif