"Unknown Command" or "RMSCMD.LSP not found" reported

If "Unknown Command" or "RMSCMD.LSP not found" is
reported after typing "RMS" on the ACAD command line,
then AutoCAD has not been properly configured to run
RMS.

AutoCAD is automatically configured to run RMS by the
installation program. However, if RMS does not operate
then some manual "tweaking" may be required. By
following what the installation program does to setup
AutoCAD will allow you to determine what is wrong.

The RMS installation program does a series of things to
install RMS for AutoCAD.

First, it modifies the ACAD.LSP file by adding three
lines to it which are contained in the file RMS.LSP.
If the install program cannot find your ACAD.LSP file,
it creates a ACAD.LSP in the RMS subdirectory with the
contents of RMS.LSP.

The ACAD.LSP file is loaded whenever AutoCAD starts.
Sometimes a user might have another ACAD.LSP file
defined somewhere else on their hard drive that AutoCAD
loads first (it will only load the first one it finds),
or they may have defined their ACAD.LSP in such a way
that the last three lines in the ACAD.LSP file are
never executed.

The three lines added to ACAD.LSP load a second LISP
file, called RMSCMD.LSP. This RMSCMD.LSP file is stored
in the RMS directory. Sometimes this file can't be
loaded with a modified ACAD.LSP file if the RMS directory
has not been specified in the AutoCAD path.

The ACAD path is defined by either the ACAD environment
variable "ACAD" for AutoCAD DOS versions or by the ACAD
setting contained in the ACAD.INI file for AutoCAD
Window versions.

If the ACAD.LSP file has been properly setup, but the
RMS directory is not in the AutoCAD path, then AutoCAD
will report the error "RMSCMD.LSP not found in ACAD
path."