Licensing for VB6 Applications

QLM protects your legacy VB6 application with the same level of functionality and license protection that are supported by modern programming languages. With QLM VB6 License Protection, you can provide permanent, trial or subscription based licensing to your customers. Your customers can easily activate their license online when connected to the internet or offline if they are not connected to the internet.

Our extensive license protection API is fully supported on VB6. 

In order to prompt the user for a license key and activate it, you simply launch the QLM License Wizard from your VB6 application. The QLM License Wizard eliminates the need to develop any complex code in your VB6 application to capture a license key and activate it. The QLM License Wizard is a standalone application that you launch from your VB6 application. For more details about invoking the QLM License Wizard, refer to this article.

To help you get started, we provide a sample VB6 application that you can use as a reference to implement licensing in your own VB6 application. The sample is located in the following folder: C:\Users\Public\Documents\Quick License Manager\Samples\qlmpro\Windows\VB6

The files that you need distribute with your VB6 application are listed in this article.

You should also read our Step by Step guide to protecting an Excel application with licensing. Although this article refers to Excel, the same steps apply to VB6.


QLM License Wizard


To learn more about QLM’s feature set, go to our main QLM product page.