[MSDN Library June 1998] QUERY_SERVICE_LOCK_STATUS (54.0204678362573%)
MSDN Library Visual Studio 6.0 > Platform SDK > Windows Base Services > Executables > Services > Service Reference > Service Structures
[MSDN Library April 2000] QUERY_SERVICE_LOCK_STATUS (54.0204678362573%)
MSDN Library - April 2000 > Platform SDK > Base Services > DLLs, Processes, and Threads > Services > Service Reference > Service Structures