Changing Windows 7 Start Sound, Not Working Anymore?

I changed my Windows start sound a while back.After updates some time ago, it changed back to the original.I decided to change it back the way I wanted it and opened up the imageres.dll file in the Windows System32 folder using Resource Hacker.I found that the Imageres file still pointed to my sound file and when I hit play it, it played my sound.But my computer plays the default sound when it boots.I ran a search and found another Imageres file at this location...C:Windowswinsxsx86_microsoftwindowsimageres_31bf3856ad364e35_6.1.7600.16385_none_dc93f95659399ba8imageres.dllThis file plays the original Windows sound but will not let me change it even with Resource Hacker.I go through the process on a copy of the file pasted on my desktop, but while I don't get any error messages, it still plays the original sound after completing the process.