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Trying to find article about dynamic gifs for user registration


I saw an article (kicks self for not bookmarking) on the web about those
sites that ask you to type in the text shown in a dynamically-generated gif
or bitmap, to confirm your registration. It's to keep bots and webcrawling
software from registering and using a website's services. I thought I saw
an article about this on MSDN, but I can't find it now...does anyone know
about the article I'm talking about? Thanks,

-Jim
Nov 19 '05 #1
5 994
> I saw an article (kicks self for not bookmarking) on the web about those
sites that ask you to type in the text shown in a dynamically-generated gif or bitmap, to confirm your registration. It's to keep bots and webcrawling software from registering and using a website's services. I thought I saw
an article about this on MSDN, but I can't find it now...does anyone know
about the article I'm talking about? Thanks,


If it helps, the 'technical' term for these things is 'catchpa'

-Darrel
Nov 19 '05 #2
Here is a nice control.

http://codeproject.com/aspnet/CaptchaControl.asp


"Jim Bancroft" <as******@nowhere.com> wrote in message
news:%2****************@TK2MSFTNGP15.phx.gbl...

I saw an article (kicks self for not bookmarking) on the web about those
sites that ask you to type in the text shown in a dynamically-generated
gif or bitmap, to confirm your registration. It's to keep bots and
webcrawling software from registering and using a website's services. I
thought I saw an article about this on MSDN, but I can't find it
now...does anyone know about the article I'm talking about? Thanks,

-Jim

Nov 19 '05 #3
That article also has the MSDN link you were looking for:

http://msdn.microsoft.com/asp.net/us...hip_aspnet.asp

PJ

"Jim Bancroft" <as******@nowhere.com> wrote in message
news:%2****************@TK2MSFTNGP15.phx.gbl...

I saw an article (kicks self for not bookmarking) on the web about those
sites that ask you to type in the text shown in a dynamically-generated
gif or bitmap, to confirm your registration. It's to keep bots and
webcrawling software from registering and using a website's services. I
thought I saw an article about this on MSDN, but I can't find it
now...does anyone know about the article I'm talking about? Thanks,

-Jim

Nov 19 '05 #4
If it helps you should spill et currectly ;-)

Its CAPTCHA
--
<%= Clinton Gallagher
METROmilwaukee "Regional Information Services"
NET csgallagher AT metromilwaukee.com
URL http://clintongallagher.metromilwaukee.com/

"darrel" <no*****@hotmail.com> wrote in message
news:uZ*************@TK2MSFTNGP12.phx.gbl...
I saw an article (kicks self for not bookmarking) on the web about those
sites that ask you to type in the text shown in a dynamically-generated

gif
or bitmap, to confirm your registration. It's to keep bots and

webcrawling
software from registering and using a website's services. I thought I saw an article about this on MSDN, but I can't find it now...does anyone know about the article I'm talking about? Thanks,


If it helps, the 'technical' term for these things is 'catchpa'

-Darrel

Nov 19 '05 #5
A better C# implementation
http://www.codeproject.com/aspnet/CaptchaImage.asp
--
<%= Clinton Gallagher
METROmilwaukee "Regional Information Services"
NET csgallagher AT metromilwaukee.com
URL http://clintongallagher.metromilwaukee.com/

"PJ Olson" <pe*****@sux.com> wrote in message
news:eq****************@TK2MSFTNGP15.phx.gbl...
Here is a nice control.

http://codeproject.com/aspnet/CaptchaControl.asp


"Jim Bancroft" <as******@nowhere.com> wrote in message
news:%2****************@TK2MSFTNGP15.phx.gbl...

I saw an article (kicks self for not bookmarking) on the web about those
sites that ask you to type in the text shown in a dynamically-generated
gif or bitmap, to confirm your registration. It's to keep bots and
webcrawling software from registering and using a website's services. I
thought I saw an article about this on MSDN, but I can't find it
now...does anyone know about the article I'm talking about? Thanks,

-Jim


Nov 19 '05 #6

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