+ PKSBASIC_HEADER BasicHeader = (PKSBASIC_HEADER)((ULONG_PTR)Object - sizeof(KSBASIC_HEADER));
+
+ /* sanity check */
+ ASSERT(BasicHeader->Type == KsObjectTypeDevice || BasicHeader->Type == KsObjectTypeFilterFactory ||
+ BasicHeader->Type == KsObjectTypeFilter || BasicHeader->Type == KsObjectTypePin);