Need to change a dll for modified version

Hi, I have just had to move to Vista, i am running home premium. But need to run an old programme which requires a modified version of the Riched32.dll, I have turned off the DEP as per this blog (through cmd line) however it will not allow me to change it. I get this requires permission come up and then try again, this just repeats and will not change. I have turned system restore off as well. I had no problems with XP. Any help would be much apprciated.

Regards Julian

You might check out the tutorial about Taking Ownership of Files. In Vista even if you are Owner it doesn't let you just delete system files. The tutorial should do the trick.

Thanks, I have been digging around and have managed to take ownership also turn off all security elements and changed the dll file. but it wasn't easy.

once again thanks for the reply.

Julian