Lensman63

I have a problem with CMSF It stopped working with the shortcuts saying the file was missing. so after checking if AVG was up to its normal tricks and it was not as the Virus vault was empty, I decided to try reinstalling it from my Paradox disk. At the end of the install I get the following error "Move File failed; code 5. Access is denied", I aborted from this. Looking in the directory there does not appear to be "CM Shock Force.exe" file and I have checked for hidden files. I have windows 7 and tried running it as administrator with the same problem. I have uninstalled and reinstalled but still get the same problem. Please has anybody got any ideas ? thanks