So I just found out that I can run UFT scripts through mdrv.exe (why could I never find this out before now? Ugh!) from a command line without a lot of vbs scripting to launch it and without loading up the UI or use the batch runner. What I'm wondering is if you can launch multiple instances in order to launch multiple scripts simultaneously?

I tried

start mdrv.exe -usr "[path to .usr file 1].usr"
start mdrv.exe -usr "[path to .usr file 2].usr"

But it appears to kill off the first script and begin running the second almost immediately. Is there a way around this so that I can kick off multiple scripts at the same time?