CHAIN command not working

[mnrvovrfc]

I've got a simple example working, but I'D STRONGLY DISCOURAGE using CHAIN
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I'm not sure where I read it (QB64 wiki?) but the QB64 system has to use files to keep track of the data going from one program to another. This means that, especially on Linux, this could present a security issue, which is the main reason why the use of "CHAIN" is discouraged. Somebody who knows how QB64 operates could make malicious arrangements such as scrambling file or directory permissions. It's hard enough to detect if a program is already running and, if an attempt is made to run it again, to just pick up the parameters from the command line, like "Audacious" media player could do on Linux to order it to start, stop, resume and so on. That's an alternative to using "CHAIN" but that could also be screwed up intentionally by a vengeful person.