>i hav a developed a project in vb.net for security purpose i want to liscensing for the product
>>
>>i want to generate a 16 digit serial no with client machines mac address and depending upon that i want serial key of 20 digits one character
>>one number alternatively any one pls help me how it should be done.
>
>Thank U in advance


you can start with http://www.emoreau.com/Entries/Articles/2007/12/Licensing-a-VBNet-application.aspx