How to use TLL in non .NET applications?

You can use Treek's Licensing Library through COM model. To use it, simply register TLL with Toolbox (Register COM tab). Exact usage depends on the development environment you use. Remember, that you have to register TLL on production machines. This can be done via RegAsm.exe (part of .NET framework). You can find the path and correct arguments in Treek's Licensing Library toolbox, Register COM tab again. In MS Office VBA projects, you can add reference to TreeksLicensingLibrary.tlb file after COM registration.