1. Simple PHP billing/authorization system (registration: email, username, pass. name/country updated via PayPal IPN after payment)
2. Auto create OpenVPN account upon payment (multiple servers) based on the selected package.
1. Custom GUI Interface for OpenVPN for Windows ,
2. Options to remember Login, Select Different VPNS from different countries
3. Code to be written in .NET or visual C++ whatever is more flexible.
4. Integrate product logo.
5. Need to have source code.