hi there! just arrived home from a friend who asked for help regarding his pc not opening up applications. after attempting several solutions..all failed! pc specs: AMD-athlon 2.0+, 128MB DDR, 64MB AGP, 40GB HDD running winxp sp2 the problem: except from "my computer", "my documents", "internet explorer" & "recycle bin", all other icons are not opening up applications even if u directly open it from the source folder (x:/program files/program name). and also when trying to open up icons in the control panel except for "folder options" none shows up, also include icons in the start menu. in short, everytime i tried opening a program/application this message shows up --- "file not associated with this program (program path).....go to folder options control panel to blahblahblah". if i try to run commands like msconfig and regedit, still the same. and some startup items aren't loading like "cleanit!", "rainlendar", etc. solutions that failed: 1. go to "folder options" and restore all defaults. 2. go to safe mode and login as admin but cant change any settings cause that message keeps showing up. 3. right-clicked every icon and checked the "target file" and even clicked "find target" just to make sure including the path. 4. tried creating a new account but i can't since clicking "USER ACCOUNTS" does nothing but show the message. 5. tried SYSTEM RESTORE but failed since it also shows up that message. 6. lastly..i tried repairing xp but when it comes to the point of "installing devices" (34 minutes remaining) a window will popup saying what prog to use to open up "rundll32.exe", "regsrvr32.exe", logonblahblah.exe" and more stuffs which i dont see in a normal setup or repair. so i tried cancelling every window that pops out and at last the setup finishes but as i expected same problem. i had one solution that opened up applications from the icons on the desktop..by right-clicking the icon and clicking "Run as.." then removing the check on "Protect my computer from.....blahblahblah" and *p00f*! the application/program opened but thats just from the icons on the desktop but as far as all other icons concerned same message will appear. any ideas on how to fix this? i'm close on reformatting the drive but there are a lot of important docs there which he had no backup. can you guys give me any idea on how or why this had happen and if it still possible to fix it. how? please help us. thanks in advance and more power!