Remote Access Problem

Question

I am working in WindowsXP SP2. when am trying to connect through WBemTest its giving an error RPC server unavailable. I have checked RPC is running and firewall in my system and remote system are turned off. The 2 systems are under workgroup named 'WORKGROUP'. I have changed 'Control Panel>Administrative tools>Local Security Policy>Security Options>Network Access : sharing and security model for local accounts' to 'Classic - local users authenticate as themselves'. And again in Computer management's WMI control's property - CIMV2's security for 'everyone' Remote Enabled'.


Still am getting an error access denied when trying to access remote machine through my C#.net code. and getting RPC server unavailable in WBemTest.

Can any one help me for this...