Hi guys, thought I should try to contribute a little bit myself here
I have attached 2 files, one MT4 library with everything you need to use Mailslot communication, and one vb.net file containing everthing you need to handle mailslot communication on that end
Enjoy, and please share of you use it for anything cool
There is some 'interesting' things about Mailslots, basicly its Many to 1 communication, and only one way..(You can only create 1 reader, but you can hook up many writers to it...)
Good luck, the code is mostly cut and paste from a lot of different sources, and cleaned up a little bit