There is a shell32.dll in win2k under winnt/system32 directory which provides certain core functions in OS. i want to change that shell32.dll with my own version of shell32.dll, which i have already made. My problem is that when i replace that file and reboot my machine, the OS again "regenerates" the original shell32.dll and my dll is overwritten. am using SP2 also and have changed the shell32.dll in that servicepackfiles directory to my version of the same. There is no shell32.dll in the i386/*.cab files. but still it is able to get the original file somehow. how do i go about changing this file?