Batch ''Net Send''

I need a program to send instant messages to a list of IP address(can be managed as groups) as fast as possible. It's like to use "net send" command under DOS. I can also use NetMessageBufferSend() under Delphi but it's seems too slow. I think multi-threads tech. needs to be used. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform All MS-Windows or WinNT,2000,XP