To recover a registration code or an installer for a third party product purchased through the Mark/Space store, please visit the software partner's website.

Pdassi customers will need to update their email address using our Change Address Utility

Download version update - If you are already a registered customer and want to ensure your product is up-to-date. All current version updates are available at our updates and demos page.

Retrieve original installer and/or registration code - If you need to re-download software or have lost your registration code for a Mark/Space product, just enter your email address below and we'll send any registration codes (where applicable) and a new download link to you.

Change your email address - If you need to change the email address associated with your purchases, visit our change email page.

Upgrade previous version - If you would like to take advantage of our special product upgrade program, please visit our product upgrade matrix for detailed information.