Remote Assistance Problem

[Guest]

I am trying to offer remote assistance to a computer in our compnay and I
keep getting the following message "access to the requested resource has been
disabled by your administrator".
Both PC's are running on Windows XP SP2 and I have set the firewall settings
to allow for remote assistance and the settings in My Computer Properties,
remote tab.

I have searched for this error on the web and all I have been able to find
is stuff relating to group policies but our company is not currently using
group policies.

Is there anyway of making this work?

 

[Mark L. Ferguson]

They probably turned off some required service. (start/run, type: services.msc)