ControlService() Results in Services.exe Memory Leak

• Microsoft Windows NT Workstation version 3.51
• Microsoft Windows NT Server version 3.51

SYMPTOMS

Applications that repeatedly use the Win 32 call ControlService() with the SERVICE_CONTROL_INTERROGATE flag may result in a memory leak in services.exe.

To identify the leak, monitor memory allocations of Services.exe using Pmon.exe, or monitor private bytes of Services.exe using performance monitor. The allocated bytes will increase abnormally over time.

CAUSE

A pointer was allocated to hold the service image name that was not freed after querying the status for a driver.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 3.51. This problem was corrected in the latest Windows NT 3.51 U.S. Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words: prodnt 3.51

Keywords : nt32ap NTSrvWkst
Version : 3.51
Platform : WINDOWS
Issue type :