PainShop Incorrect Registry Key (Error 1606)

To solve PaintShop Pro error 1606 Incorrect registry Key try the following:
1.Go to Start ->Run and type "regedit" and click OK."
2.Click on the Plus sign on the folders in the left pane and look for the “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders”
3.Check the values of the directories and correct them if they are wrong by right clicking and modifying the value.
4.Also check and correct any error in the following registry values
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders