What a joke you are eddy,you must have forgot of the 12 pages of GrimeFighter threads and much more than a majority,just about all of the 12 page are full of complains.
Furthermore in respect of testing the program before buying it,from my experience I wasn't able to download,install and run GrimeFighter and test that it does work on my system and clean off all the grimes it repeatly reported to me about,without firstly purchasing the product,receive a licence and register it.Then find out it doesn't work.