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This article explains the error "ProgName fails with RTS 173".

Problem:

A program can be executed from anywhere if its location is added in the environment variable COBDIR (if it is in .INT or.GNT and executed with the RUN command) or PATH (if it is in .EXE). However, the animator cannot find it if it is to be animated from the command line as shown below:

MFNETX /DEBUG:ProgName.Ext.

Where ProgName is the name of the program and Ext is the extension (INT, GNT, or EXE).

The above command fails with RTS 173, which means that the program cannot be located, unless the program is in the current directory.

Note: Animating a program always requires its program source and its .idy files to be available.

Resolution:

The command line parameter ProgName should either be the full path of the program or a program name relative to the working directory. The following precision has been added to the documentation of Net Express 5.1 with WrapPack 2, which applies to all versions of Net Express: "If the program being debugged is not in the current directory, ProgName should contain the path to the folder containing the program."

Incident Number: 2133994
Old KB# 14369