Thanks, Mike, I'll try that.

By the way, the note on the WindX.utl page of the local help file of the V14 installation makes no reference to any of those variables.

Which TCP port range should be open for the directive CALL "*WindX.utl;SPAWN" to work? I have opened up 3000- 65535, but this is not in line with best practices. Without this range open, we get an error message dialogue box displaying "Connection failure to host:[tcp]10.11.22.33:NNNNN; NODELAY; STREAM", where NNNNN is some random high port number.

This is for WindX Plugin 2017 Upd 1, and PxPlus Version 14.10.0000 running on RHEL7.5

Thanks,
Les Gondor
Electro Sonic