Answer by Chenmunka for Automatically check if a program is (still) running. If not, start it

This is one of the things that you can do with AutoIt.

Create a small script that performs a check periodically. Something as simple as...

While True    If (ProcessExists("prog.exe") = 0) Then      Run("prog.exe")    EndIf    Sleep(1000)  Wend

...or even...

While True    RunWait("prog.exe")  Wend

...or more complex if you wish.

The script can be compiled to an exe and run quietly in the background.