Buying source code for working projects Edit - repost

I'm looking to buy code that you have done in the past for previous clients. your code if its part of a web application must include diagram showing database name, tables, columns, rows etc. i will consider all programs you submit for purchase as long as it has the source code fully commented. programs that are not on the web, will have to send me the code or executable for consideration. I will be testing the programs on my application server if it's a web application, at this time, i am mainly interested in php apps, asp.net, c# apps, vb.net apps, [login to view URL] apps, java applications/applets, c++ apps, vb6, vb.net, apps using xml. please provide instructions as well. All programmers who wish to be considered must list their urls where the apps are currently being used and what language they used and what database. if app is not web application, please list the modules that are being used in this app. program something useful like an country level school admin, health care system , bank application, e-commerce system with full administrative features, or some type of control panel, we may be interested in buying it. AGAIN PLEASE DON'T ENTER A BID, IF YOU DON'T WANT TO SELL THE SOURCE CODE. I AM A PROGRAMMER LOOKING FOR SOURCE CODE TO HUGE PROGRAMS THAT ARE DIFFICULT TO IMPLEMENT. I'm not interested in some little shopping cart or something easily programmed, i'm interested in programs that are difficult to implement that have some unique features or are extremely large. i'm looking for enterprise solutions for b2b, b2c, etc. I'm not interested in some easy program that queries a database and displays some info nor am i interested in simple search engines unless it has some AI features that improve its searching ability. Deliverables Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. Complete copyrights to all work purchased.