ok i posted over on the AVI recomp forums but they dont seem to be very active there so im gonna cut/paste my problem over here incase someone here can help me out,

"ok i used to use AVI recomp quite often never a problem, about a month ago i did a reformat and havent had time to reinstall till today...well i fire up AVI recomp add my video i want to fix and get this error, "System Error. Code: 193. %1 is not a valid win32 application" the error pops up about a second or two after i click start...i didnt mess with any settings andf retried with several different avi's from different sources same thing, so i uninstalled everything rebooted and tried installing the old 1.2.1 version, does the same thing....very frustrating this was a very usefull tool for me, any help would be very appreciated thanx."