Software protection and license management

Question

I have following requirements for selecting a license product for my software

1. .Net based
2. License manager - Should be able to view and manage the customers interactively, automatically,e-commerce is not mandatory.
3. Good Customer support, examples and available source codes
4. I may need to update the license monthly and exciting users should be able to get those from license server automatically (mandatory requirement, we control the customers like this)
5. And Most importantly the price for my requirements

Based on these requirements I have following options

1. Software Key (http://www.softwarekey.com/protection-plus/5/)
2. CryptoLicensing For .Net(http://www.ssware.com/cryptolicensing/features_net.htm)
3. EZIRIZ(http://www.eziriz.com/)
4. LicenseSpot (http://www.licensespot.com/)
5. Eleckey 2.0 Internet Plus (http://www.sciensoft.com/products/eleckey/comparison.html)

Do you have any views or any more suggestions on this? What would you suggest?

Edit

I found this link for CryptoLicensing , this one for Eleckey 2.0 and this one for manco.net. Any comments for other products?

Answer 1

One of my favorite licensing system is Portable.Licensing. It's very flexible, portable due to the PCL and has a powerful but easy to learn fluent API. I've used it successfully in many applications. My own and other business applications.

Maybe this is a good alternative.

If you need further help, there's also a Pluralsight course about "Licensing .NET Applications" that features Portable.Licensing (I'm the author of the video).

Cheers