RCMD.EXE from theis a Client (RCMD.EXE) / Server (RCMDSVC.EXE) tool for remotely issuing commands on a Windows NT Server.
If you receive the subject error when using RCMD.EXE, there has been a logon failure to the server. Correct this by opening a command prompt on the client and typing:
net use \\<ServerName>\IPC$ /User:<DomainName>\<UserName>
where <ServerName> is the server on which you are attempting to run a remote command
and <DomainName>\<UserName> is a Domain Administrator account.
See tip 239 for a "donnationware" remote console facility.