h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

please can anyone help

ive spent a month trawling the net looking for a tutorial or source code to help me with this and ive hit a large brick wall infact ive hit several.

I taught myself vb 6.0 and am now upgrading to vb.net as a hobbiest.

My friend asked me to write him an xml database prog in vb.net to sort and store ip address blocks for him eventually i got around to doing it only to find he did'nt want it anymore. So not willing to wast my work i decided to adapted into a fire wall type thing to monitor my tcp/ip connections and store the addresses in the xml db using the iphelper api's. This done I have decided to work on it a little more so that i could find out which services on my xp pc were connecting to which port.

This is where a brick wall snuck up and boddy slamed me straight in the mush.

Ive found an api call used in some vb 6.0 source code (getservbyport)
that will do it but i get neumerouse errors reported (and a grand canyon sized headache)when I try to upgrade the code to .net

surely there is some function in vb.net that can do this instead of having to beat a largley undocumented api call around my head several times or if not can i have some pointers on how to use the getservbyport api and associated api's in vb.net.

will sombody please help a ignorant wanna be programer befor i give up and put my head through my computer screen.

well some experts you lot turned out to be never mind decieded to ditch the project for now and go back to biulding an independent chat network now that i know how to do