This typically happens after Microsoft updates their Windows Media Player. The updates change registry entries and Inscribe needs to re-associate itself with the media player.

This is how to fix the error Parameter is incorrect within Inscribe.

1. Log out of Inscribe.
2. Start Inscribe, but "BEFORE" you log in click the "OPTIONS" button.
3. Click the button at the bottom of that Window-box called "REG MS MEDIA".
4. After you click that button and it will come up with a "Reg...Successful" click "OK" and then log into Inscribe normally.