The file is a .exe unix file from the windows partition that I deleted by mistake whilst using OSX. I've tried to put the file back in it's original folder on the bootcamp partition which worked but a copy of the file stayed in the trash (and yes I made sure that the file was being moved and not copied).
When we've met this one before it's had to be solved by deleting it in Windows rather than the Mac - though if you've been deleting volumes I don't know what the implications of that would be.
That's not what I meant, and this may just be useless anyway but locate the copy in Windows and delete it, empty the Windows trash (copy the file off the machine if you need it) does this have any effect?
Try Linc's suggestion, I should have thought of it