Thanks for all the feedback, here's an update...
- Tried booting in safe mode but still tells me the files aren't there when I try to delete them.
- Tried using Eraser, I drag and drop the files into Eraser but it does nothing and files aren't erased.
- Tried creating a file with the same names to see if it would overwrite and strangely it lets me have two files with the same name! (called
Bounder_version.capx). The 'false' one i can delete no problem.
- Tried running 'Command' and deleting it from the DOS window, again it say's it can't find the file.
*See the Edit below*
The two file are definitely showing in the folder but Windows doesn't seem to know they are there!
Edit: I've found a way! If you're having the same trouble, try here: http://www.aade.com/XPhint/zero%20byte.htm.

I reject your reality and substitute my own...