Remote Scripting calls work locally but not from client

[Mecurio]

Running IIS5. We have an asp helpdesk which uses RSExecute calls. These work fine if you log into the intranet server and try and use them. However from the client end the RSExecute function always returns -1. I've tried fiddling around with various error reporting methods and it seems that the remote scripting isn't working if you're a remote client.

Is there some new permission I need to address with IIS5 vs 4? I've heard that SP2&3 on Windows 2000 have locked remote scripting down a lot.

TIA

Rowan