Hi, I have worked on a project for a friend and it needed to retreive some data in UDP packets, it was a challenge because I didn't know anything about that packets, and after few days of work I have managed to do what I wanted. The hardest part was to set a very strict filter for the cpu usage and for the script optimisation, so here is one : ;use filters with _PcapStartCapture ;retreive only tcp packets containing AABBCCDD, at the start of 8 and with a length of 4; like the StringMid func. t