Something is blocking it from running. Are both MBIILauncher.exe and MBII_Patcher.dll present. What happens if you try and run MBIILauncher.exe independently
It looks like your download was corrupted actually.
If you upload the MBIILauncher.exe that has been downloaded to this site Online MD5 Hash Generator & SHA1 Hash Generator and see what it's MD5 is. It should be C9B600984B92C26CE78B9D4AD5389E77. Any other value indicates a corrupted download.
I have updated the first post with a workaround for the Minimiser. Please let me know if this works and i'll get a code fix for the scenario pushed out.