When I boot up NT on the blue screen after the dotted lines show up, I get this:<P>STOP:c0000221 {Bad Image Checksum}<BR>The image shell32.dll is possibly corrucpt. The header checksum does not match ...
Get an icon theming program like IconPackager. Shell32 may contain a lot of icons, but very few programs are hard coded to use them. The registry has icon paths for file types, system icons, etc.