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    Key Redemption

    Product Registration Help

    Product Registration Help

    To access purchased content or to download files from the Companion Website, you will need to create an account and register your product.
    Sign in to an existing account or register a new Cheng & Tsui account and enter your product key exactly as it appears.

    (Note: Some products will require you to answer a validation question instead of entering a product key.)

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Customer Service

Do you have questions, comments, concerns, or requests for information? Please see the topics below for useful information.  If you cannot find what you are looking for, you may also browse articles in our Knowledge Base, or contact Cheng & Tsui directly. Customer Service representatives are available Monday through Friday, 9 AM to 5 PM, EST.

Contact Us

Phone   1-800-554-1963
Phone   1-617-988-2400
Fax        1-617-426-3669