I'm using photoshop 7.0 with windows Vista and I keep getting that error message when I try to launch the program. I lost my cd. Is there a work around to fix this issue beside reinstalling application?
Your best bet would be going to Control Panel > Programs > Programs and Features and double-clicking Adobe Photoshop. It has a "Repair" and an "Uninstall" button, so maybe you can try clicking "Repair" and it won't ask for a CD? Make sure you have backups of your settings and extensions if possible!
Other than uninstalling the program altogether, I can't think of any other way to fix Photoshop without it starting up first. Good luck!