Hi there,
You can determine the Evaluation time period by checking the message. Messages are logged to the Application Event log, and you also receive notification messages that are similar to the following when you log on to the computer:
The evaluation period for this product will expire in Number days. Please upgrade this version to the retail product.
you can also Use Winver.exe to Determine the Expiration Date, please check the KB
http://support.microsoft.com/kb/818025hope this can be helpful.
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