Procedure entry point could not be located in DLL

I am testing a desktop application.

If I run the application natively outside of TestComplete, it works fine. However, if I run it from TestComplete, it gives me an error message "The procedure entry point [lots of text] could not be located in the dynamic link library [etc.]"

I tried running sfc /scannow, and that did fix some errors, but not this particular one.

I really can't ask IT to reinstall the application, because it works just fine if I open it from its shortcut, so I couldn't show any reason to do so.