Well - no further posts here.
If you are concerned about the files I would suggest 2 options:
1) Rename the folder Microsoft Games - Microsoft Gamesold (right click/rename). If your computer still runs everything you want it to, you can delete the folder.
2) Just delete the file simobj~1.sh. You may need to start up in 'Safe Mode' to do this if the machine is fighting back. (F8 on boot-up)
Otherwise just leave them there?