Permission denied on CopyFile in VBS

I've only ever seen CopyFile fail with a "permission denied" error in one of these 3 scenarios:

• An actual permission problem with either source or destination.
• Destination path is a folder, but does not have a trailing backslash.
• Source file is locked by an application.

for me adding / worked at the end of location of folder. Hence, if you are copying into folder, don't forget to put /