diff --git a/reactos/lib/sdk/ksguid/ksguid.c b/reactos/lib/sdk/ksguid/ksguid.c
index bece9448fc5..dd2d53d2be4 100644
--- a/reactos/lib/sdk/ksguid/ksguid.c
+++ b/reactos/lib/sdk/ksguid/ksguid.c
@@ -14,7 +14,9 @@
 #include <basetyps.h>
 #include <guiddef.h>
 
-
+DEFINE_GUID(KSCATEGORY_RENDER,                  0x65E8773E, 0x8F56, 0x11D0, 0xA3, 0xB9, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96);
+DEFINE_GUID(KSCATEGORY_CAPTURE,                 0x65E8773D, 0x8F56, 0x11D0, 0xA3, 0xB9, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96);
+DEFINE_GUID(KSCATEGORY_BRIDGE,                  0x085AFF00, 0x62CE, 0x11CF, 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00);
 DEFINE_GUID(KSPROPSETID_GM,                     0xAF627536, 0xE719, 0x11D2, 0x8A, 0x1D, 0x00, 0x60, 0x97, 0xD2, 0xDF, 0x5D);
 DEFINE_GUID(KSPROPSETID_Topology,               0x720D4AC0, 0x7533, 0x11D0, 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00);
 DEFINE_GUID(KSPROPSETID_MediaSeeking,           0xEE904F0C, 0xD09B, 0x11D0, 0xAB, 0xE9, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96);