Don't call SNOOP_RegisterDLL on builtins.

diff --git a/loader/pe_image.c b/loader/pe_image.c
index 001b3df..4bf2993 100644
--- a/loader/pe_image.c
+++ b/loader/pe_image.c
@@ -655,7 +655,7 @@
          return NULL;
     }
 
-    if (pe_export)
+    if (!builtin && pe_export)
         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions );
 
     /* Send DLL load event */