Cant run programs with .exe extension i think my brother was messing around with extensions and some how changed .exe and nothing runs now. ive tried a registry fix i found from grisoft. and a post from another site http://windowsxp.mvps.org/exefile.htm i opened the reg with regedit.com which i was able to change the file extension because .exe was enabled. Yet i cant find the .exe in the file type listing. i have completed the regedit on the other site. and still prgrams dont start. i do not have windows recovery on so i cant roll back to a previous day. i tried everyrthing with my windows disk except reinstalling. Problem: programs with .exe extension wont run any help would be appreciated...ALOT!