Williams Xtra!

Register Your Serial Number

If you purchased Williams Xtra! with your textbook from the bookstore, you must first register using the serial number on your CD-ROM envelope. The serial number included on the CD-ROM envelope identifies you as a purchaser of Williams Xtra!.

When you click on the link below, you will be asked first to enter your serial number and a new or existing user name. Take care to enter your serial number exactly as it appears on the card. The serial number looks something like this:

SC-0055X7KX-WILX

All serial numbers start with SC- and end with -WILX. Make sure you type the dashes. In between the hyphens is a 8-character collection of letters and numbers. An "O" with a slash through it is a "zero".

Continue with Registration

If you purchased a used textbook, you may be eligible to receive access to this Web site by filling out this feedback form.

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