bulk domain availibility check

I am looking for the following 1) Program takes list of domains one per line from text file. 2) Program checks for availilitiy through [login to view URL] 3) Parallel tasking program highly prefered 4) low memory footprint 5) Speed is my number one consideration. 6) Program will email me as soon as task as complete with results. 7) This will intergrate with my existing program that makes the list of domains. 8) C or perl prefered ## 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 Program will run under unix.