Port Scanner

I need port scanner to scan range of IP number for open ports. High speed, multi threaded. I need to be able select which ports to scan. I need to be able check for open relay on smtp port. Needs to be written in VB.net and save data in MS SQL table. ## 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) Exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Net framework 1.1 VB.Net 2003 MS SQL or MSDE