PROXY 2 Guru ?

When you open the Proxy management console expand your proxy server, click on WinSock Proxy and right click on properties..
under permission check the option enable access control, you can find that you can add groups or users by clicking on edit. and give them the type of permission that you want on any of the listed items that you have.
Check this it could help you

Good luck.

Here try this...

1. Get to the WinSock Proxy Service Properties page.
2. Select the Protocols tab.
3. Click the Add button and the protocol definition screen appears.
4. In the port ranges for subsequent connections, click Add. Give it the protocol a name (Ex. No Napster/IRC).
5. Input the range of ports you want to allow and be sure to exclude the ports that you dont want users to access (ex. napster and IRC ports). Proxy includes all positive numbers up to 65,535.
6. In the Type section, select TCP
7. Click ok to close the port range definition box.
8. Click ok to close the protocol definiton box.
9. click ok or apply.
10. Now under permissions check the box 'access controls'.
11. add the group that you want to access napster and IRC to the 'unlimited access' protocol and add the group that you dont want to access napster/IRC to the protocol you just created 'no napster/irc'.

Hope this helps????????????????????