TCC finicky with external keystroke apps?

I've created a set of complex batch files that often times take a complex set of parameters which I tend to forget a lot. Rather than always looking them up, I've been trying to fiddle with a database of these commands and a button on each db record that will send the command line to an open TC window.

I've been using NirSoft's NirCMD.exe utility to activate the TC window and then trying to use its sendkey and sendkeypress functions to send the command line from the DB to the TC window...

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