From then on if you right click the "xplorer2_UC.exe" file then click on "Run as Administrator' the program will turn itself on and an error window will display saying that you do not have administrator privileges.
If you enter the serial again at this point the program will not accept it.
It is no good contacting the company that sells Xplorer2 Pro. They are only interested in getting your money. They have your money so they will not help you if you enter the serial incorrectly the first time.
The only answer is to go to "Start". Then in the enter box that will appear in the lower left hand corner type in "regedit". Go to "Edit" then "Find" in the registry window. Type in "xplorer2". Click "Find Next", then delete the file or folder at the point where the search stops. Click "Find Next" and delete the files or folder where it stops again. Go on doing this until the end of the registry is reached - about six times. Close the registry window. Reboot.
You may have to install Norton Anti-UAC from this site before you reinstall Xplorer2Pro:
This will make sure you gain access to all files and folders, thus overriding Vista UAC. In future when a Vista warning window appears click the square "do not ask me again" and the computer will never give a warning window again when you open that program.
Now if you reinstall Xplorer2Pro. Go to "xplorer2_UC.exe" file then click on "Run as Administrator' the program will turn itself on and an error window will display saying that you do not have administrator privilege. An "Enter serial number" window will appear. If you enter the serial now the program will register. When you close the program and turn it on again the program will be registered.
THE ETHICS OF THE XPLORER2PRO COMPANY
In my opinion the company has illegally interfered with your computer!