You should not use standard registration dialog. Just create own registration dialog inside your application (for example, that will ask to enter name and key), and then, in the code, call Enigma API function EP_RegCheckAndSaveKey (or EP_RegCheckAndSaveKeyW for unicode) to check if the registration information is correct and save it.
I've attached SDK for VB.NET and also small example how to create such dialog in vb.net.
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Sir i want to make a login form contains login button and textbox to input key
i want to make my own keypanel to use it in my vb.net program
also i want to use custom key method not this long key .
Thanks Enigma Team