A single key can unlock the trial product on as many computers as you purchase licenses for. The trial version can be downloaded from here.

Shortly after payment is received you will receive your registration key or keys by email. Normally this will be within one business day. We recommend the use of instant PayPal payments (not eCheck/eCheque) to ensure you get your keys as quickly as possible.

If DiffEngineX is uninstalled and reinstalled on a new computer we have a policy of reissuing or reactivating keys at no further cost. With Internet activated keys this process is automatic.

Except for significant updates, upgrading to later versions is free for up to a year after purchase. Click here to purchase upgrade registration keys. If you are purchasing DiffEngineX for a whole group and need priority support, you should consider our packs of 10-user licenses.

at 99 US Dollars per single computer license.

at 65 US Dollars per single computer license.

• Individuals purchasing registration keys for non-business and non-organizational use.

Click here if you want to purchase using a credit/debit card, but using share-it! as the merchant of record. In addition to credit cards they accept bank/wire transfers, UK issued Solo/Switch/Maestro, US bank postal money orders and checks.

share-it! is a service of Digital River, Inc. [NASDAQ:DRIV].

If you are a business located in the European Union and wish to enter a VAT ID number during the payment process you should use this payment method.

You can optionally order the software product on CD/compact disk, which will be delivered to you by postal mail. You can begin using the downloadable product right away even when ordering the CD.

Any queries should be addressed to

Please refer to the instructions found on the first dialog box that appears when DiffEngineX is run on how to activate the software product.

A copy of the software license agreement can be found here.