Help extraction error message

have r4i for my 7 yr old son have downloaded one game successfully but now every game i try to extract after downloading and saving on computer gives me a message that file in unknown application or corrupt - any suggestions please as my son has been waiting for 3 wks for this and now we have it i can't get it to work plssssssssssssss help

Re: download error messageFirst, what roms have you downloaded that show this message?Second, you are waiting for the download to finish, right? The RAR is all there and all?

Re: download error messageuniversal games - avator, wario, ironman 2 - no big graphical games. Rar program on my computer - i might uninstal and reinstall the programme incase but it was fine for my first download. saving files to desktop then extracting to removeable disc even if i try to open the file the same message appears

Make sure you have the latest version of winrar.
http://forum.romulation.net/index.php?topic=3880.0Use a download manager to avoid corrupted downloads. Like flashget www.flashget.com