why??

[fhyang]

Why can't use  KEY

[TucknDar]

please provide a little more info, if you require some help. Do you need help entering a key into one of the DonationCoder apps?

[wreckedcarzz]

You can obtain a free license key from the website, here:
http://www.donationcoder.com/Keys/index.php

Then you can enter it via copy (highlight via left click and drag, then Control+C) and paste (Control+V) into the license box that appears when you open the application. If you are not asked for a license when opening the program, go to the Help -> About box and see if there is an option there (it could also be somewhere under the Help menu).

And yes, please do explain your problem more thoroughly. We aren't mind readers

[Stoic Joker]

Why can't use  KEY

Please research the 5 W's; What, When, Where, Why, & Who as these will assist you greatly in learning how to convey a complete (thought) story.

Thank You