automatic captcha processing

Hi, I'm looking for someone that (preferably) already has some form of automatic captcha processing code written. (I am not looking for something written from scratch, however, if you can write it from scratch at a reasonable price, I might be open to that). Ideally VB6, but it is ok if it perhaps is a C++ DLL (not .net, just regular Visual C++ 6.0). I could either compile it as a DLL and have 3rd party calls from an app, or it is ok if I process it it as an application (i.e., [login to view URL] [login to view URL], and then 'outputs' the corresponding captcha). Please let me know your experience in this area/any demos you have, and your bid. Thanks!