Command & Conquer and/or Supreme Commander at all?
If so, it's possible those files are to do with that, or those, games.
There's not much information about AgGIF in Google, but I found the link below which mentioned the Prefetch files you listed including AgAppLaunch;
In fact there are more results in Google if you search for AgAppLaunch.
Hi. I noticed recently all these "app" (I think) are showing up, some are growing in size, so I'm not sure if they are collecting data. I tried searching on virus sites but found no results. Ran Norton - found nothing. When I highlight it says it's a Data Base File, but new files are added onto the prefetch folder. I do play quite a bit of games? Could these be downloaded with the game. Could anyone tell me what these are, if they're safe virus? & how to get rid of them.
AgAppLaunch, AgCx_Sc1, AgCx_SC1.db.trx, AgCx_sc4, AgGIFaultHistory, AgGIFgAppHisotry, AgGIUAD_p_s-1-5-21-3796653510-1678680209-2959551423-1000, AGGIUAD_S-1-5-21-396653510-1678680209-2959551423-1000 and AgRobust
Using windows7 for only about 3 months, don't remember seeing these when I was using xp. Thanks for your help