Well, Windows NT 4 and Windows 2000 are designed so users can't poke directly at registers or into memory. If your program tries to do that, they will stop it. That is not "misfeature". It is a necessity in an operating system that is designed to run very large programs for very long periods of time (months or years) without rebooting. The rest of Windows, 95, 98, and ME, are all just a whole bunch of service packs heaped on Windows 3.1, which is a shell over DOS. So, if you need DOS, it's there for those programs. Corel can rotate, skew, and deform (with a pretty cool grid deformer) any bitmapped image. So I'm not sure what you're trying to do that Corel can't handle.