Index: C:/ROS/reactos-clean/reactos/win32ss/user/ntuser/object.c
===================================================================
--- win32ss/user/ntuser/object.c	(revision 64947)
+++ win32ss/user/ntuser/object.c	(working copy)
@@ -589,6 +589,7 @@
     PHEAD ObjHead = (PHEAD)Object;
 
     ASSERT(ObjHead->cLockObj >= 1);
+    ASSERT(ObjHead->cLockObj < 0x10000);
 
     if (--ObjHead->cLockObj == 0)
     {
@@ -663,6 +664,7 @@
    if (!body) return FALSE;
 
    ASSERT( ((PHEAD)body)->cLockObj >= 1);
+   ASSERT( ((PHEAD)body)->cLockObj < 0x10000);
 
    return UserFreeHandle(gHandleTable, h);
 }
@@ -672,6 +674,7 @@
 UserReferenceObject(PVOID obj)
 {
    ASSERT(((PHEAD)obj)->cLockObj >= 0);
+   ASSERT(((PHEAD)obj)->cLockObj < 0x10000);
 
    ((PHEAD)obj)->cLockObj++;
 }