An excellent open-source choice is the VbQRCodegen library on GitHub . It is based on the highly-regarded Nayuki QR library and is distributed as a single .bas module.
Visual Basic 6.0 (VB6) may be a legacy environment, but its ability to integrate with modern data formats like QR codes remains a common requirement for industrial, retail, and logistical applications. qr code in vb6
The most robust and portable way to handle QR codes in VB6 is through a "class" or "module" that implements the QR generation logic entirely in native code. This eliminates the need for registering external DLLs or requiring an internet connection. An excellent open-source choice is the VbQRCodegen library