If you are Buying FDC or FDCPLUS (with or without addins) for the first time, you will actually be purchasing a serial number that will be emailed to you within 24 hrs. Either before or after the purchase, go to the downloads page and download and install the evaluation version. When you launch the product, you will be given a chance to enter the serial number. Until then, all the features will work, but only on the provided evaluation data.

If you already have FDC or FDCPLUS and are purchasing an addin, you will simply install the new serial number upon receipt, according to instructions accompanying the email.