"explorer.exe- application error. The instruction at "0x77f52b6a" referenced memory at "0x00760065". The memory could not be "written". Click on ok to terminate the program. Click on CANCEL to debug the program" hexadecimal codes are different. this is the error window that pops up every time whenever i try to open an .AVI file nd it happens only with .avi files and other movie files etc. are working fine. whether i click ok or cancel explorer shuts down or i have to end task it. it started happenig when i copied a .avi file from a pen drive.i think that was corrupted but now all .avi files dat previosly existed or i downloaded are affected. please help me. i run win xp/sp2 updated. Mcafee updated. 845 m board. intel p4-1.8Ghz. 256 ram. i have tried runnin windows defender, malicious software removal, mcafee etc.