Could not load type 'MSCaptcha.CaptchaImageHandler' from assembly 'MSCaptcha'.

Hi Experts,
I am trying to use the MSCaptcha control on my .NET website and have followed the instructions at the following address to the letter:

http://www.aspsnippets.com/Articles/How-to-implement-Captcha-in-ASP.Net.aspx

But when I try to view the page, I get the following error message:
.net error from web.config
I've been pulling my hair out - can anyone advise on how to correct? This seems like the best CAPTCHA tool, but I can't get it to work.
LVL 1
rascalAsked:
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Bob LearnedCommented:
There are 2 download options:

Download the latest version of the Captcha ASP.NET Component.

Download older version 2.0, suitable for .NET Framework 2.0 and up.

Which option did you use to download?  What .NET version are you using for your website?
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rascalAuthor Commented:
I am using .Net Framework 4.0.30319, and using the latest download of MSCaptcha, not the 2.0 version.
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Bob LearnedCommented:
Here is a reference that might help:

Parser Error Message: Could not load file or assembly 'AssemblyName' or one of its dependencies. The system cannot find the file specified.
http://www.beansoftware.com/ASP.NET-FAQ/Virtual-Directory-Http-Handler.aspx
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rascalAuthor Commented:
Sorry, didn't help - I am not using a virtual directory, but I tried it anyway and it still gave me the same error.

I looked at my global web.config for .Net 4.0 and it had a line in it that I thought might have some relevance:

<add path="*.axd" verb="*" type="System.Web.HttpNotFoundHandler" validate="True" />

I tried removing it and restarting IIS but I still got the same error.
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rascalAuthor Commented:
Is it possible I need to add a MIME type for .axd and refer it to an image?
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Bob LearnedCommented:
If you decompile that library, the class has a different case:

  public class captchaImageHandler : IHttpHandler, IRequiresSessionState
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rascalAuthor Commented:
Interesting - I'll give that a shot and let you know.
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rascalAuthor Commented:
Wow, that did it! Good work!
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