In order to run an applicatoin it is saying that blahblah.ocx is missing and not registerd. I have placed the .ocx file in the windows folder, /windows/system folder and /windows/system32 folder, and ...

Mac OS X computers use a default application to open every file type based on its file extension. If you don't want to use the default application when opening a file, you can select "Open With" from ...