A. For any access to "network resources" you need to run SQL Server under a user account and not the default LocalSystem account. You can check what userid that MSSQLSERVER is running under by looking at control panel/services highlighting MSSQLSERVER and choosing the start-up option. This should be changed as necessary.
Without this change you will get an "error 5 - Access denied".
However, RCMD.EXE doesn't seem to work even with this change. This is due to the way that RCMD in the NT resource kit is coded - it is probably expecting there to be a keyboard/mouse defined in the user context, which there isn't.
So the short answer is that unless you use a version of rcmd.exe without this restriction then it won't work.
