Source:  LOGIN.EXE

Possible Cause:  The command could not execute because it is not specific to the platformon which it is being executed. For example, the TREE command is valid only on a multi-tree capable client. It would not be valid on Windows NT*, OS/2*, or when using a Virtual Loadable ModuleTM (VLM).

Action:  Remove the invalid platform-specific command from the login script.