There is one but unfortunately i don't remember the url. I had used it long ago so..... Try googling i am sure u will find it. at least when u know there indeed exists one
Some people just want to be spoon fed . I am wondering if you are really interested . However, check this link. I hope this is useful to you. It is really easy and simple installing this.
ASP: you will need a COM obj. ASP.NET has integrated image on-the-fly ability though, I would definitely look into that if that is the route you are going
first results from big G: http://www.codeproject.com/aspnet/CaptchaControl.asp http://www.codinghorror.com/blog/archives/000094.html
As already suggested codeproject has a few. I used one from there but tweaked it loads and loads to simplify, here is mine working.
Hi, You can also check it out http://www.cisin.com/Image_Verification_Code_and_Script.htm Nothing to download or install, Easy to use and after login will provide you detailed instructions to use it. Can be used on any web page static or dynamic, any language. Also it has more then 1500,000 impressions. Seems a good one . check it out!