Here you can find some libraries (they are classes for Visual Basic 6.0 / .NET / 20xx language) that I developed for the generation of 2D barcodes.
All codes are written using only pure Visual Basic code and therefore can be easily integrated into any project because they require no dependence on external libraries (DLL), third-party software or controls:
vbQRCode allows to generate 2D QRCode barcodes.
vbDataMatrix allows to generate 2D DataMatrix barcodes.
vbPDF417 allows to generate 2D PDF417 barcodes.
vbAztec allows to generate 2D Aztec barcodes.