It's the Access Control List for the service object. You can view the ACL for a service using the sc tool: C:\>sc sdshow w3svc D:(A;;CCLCSWRPWPDTLOCRRC;;;SY) (A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA) (A;;CCLCSWLOCRRC;;;AU) (A;;CCLCSWRPWPDTLOCRRC;;;PU) This output is in Security Descriptor Definition Language [SDDL] format. To set the ACL on a service from code, use SetServiceObjectSecurity. From the command line, you can use sc sdset. Stability. What an interesting concept. -- Chris Maunder

Ahh, thank you very much sir! This is exactly what I was looking for and could never find.

wow, ok thanks for your help. I totally forgot about using netmeeting, and I didn't truly realize how difficult such a thing could be.