I'm unsure why the question is being misinterpreted or may be I'm missing some point here, but again; all those discussions indicate how to minimize WR "during" the test run.
But in my particular case, the WR NOT ONLY has to stay minimized just during the test run but even AFTER the test.
I've tried all those tips and in all cases, during the test run it gets minimized but as soon as the test ends, the WR window gets maximized.
I need it to stay minimized "even after" the test until I manually maximize it.
The reason, I need WR to stay minimized even after the end of the test without popping up the results window etc., is because I'm trying to take a screen capture of the PC screen to indicate it's state at the end of the run.