Can someone plz pass visual basic sample program to use PCSGU250.dll function?

I need to write a visual basic program to use PCSGU250.dll functions for custom measurements of signals, can you please send or direct me to sample programs to use some functions in the dll? It would be appreciated.

Please check the software supplied with the product an example should be supplied with it.
https://www.velleman.eu/downloads/files/downloads/pclab2000lt_v1_14.zip