Well known scam
he would ask me to key in some information what did he ask you to key in?
Hope you haven't allowed remote access :0(
CLSIDs are used by Windows to identify software components without having to know their "name". They can also be used by software applications to identify a computer, file or other item. Microsoft provides a utility (program) called GUIDGEN.EXE that generates these numbers. They are generated by using the current time, network adapter address (if present) and other items in your computer so that no two numbers will ever be the same.
They now know your network adaptor address.
What sort of security software are you running?