DoubleSpace 2, included in ZIPmagic 12.78, is a major version upgrade. Therefore, we had to change our serial number algorithm.
Users who are not current on their maintenance plan may upgrade to the latest version at a very high discount.
Just email sales/support, or private message, to receive your upgrade coupon - which will be issued immediately after the validation of your account.
Sorry to hear about the technical issue you are having. Are you able to provide any more details about what happened, such as screenshots, detailed error messages, etc.?
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