From Soraco Technologies:
Quick License Manager (QLM) is a manager that creates professional and secure license keys to protect your software against piracy. QLM creates trial keys, machine bound keys and software activation keys. QLM can protect applications developed in .NET, ASP.NET, C++, COM, VB6, VBA, Delphi, Excel, MS-Access,Word, Outlook add-ins, Android, iOS, iPad, iPhone, Windows Phone, Mac OS X, Linux. QLM provides a complete license management console. You can track and manage all your license keys and your customer information. You can also send customized email messages to your customers to notify them of specials and/or upcoming releases. QLM integrates seamlessly with the ordering process of leading eCommerce providers and can automatically issue license keys when a purchase is made online. QLM is currently integrated with Plimus, FastSpring, ShareIt, Regnow, SWREG, Paypal, Google Checkout, Avangate and UltraCart. For subscription based software, QLM can issue keys that expire after a period of time. Renewing a subscription can easily be automated from your eCommerce provider. Add a Check for Updates feature to your software so that your customers are always current with your latest release. Track installs and uninstalls of your software to assist you in understanding customer behavior and improve download trends. If you use Affiliates or resellers to sell your software, associate license keys to an affiliate and track the sales of each affiliate. The QLM Affiliates web portal allows your affiliates to generate license keys for their customers while providing you total control over the number and type of license keys they can create or see.