When you configure Microsoft Dynamics CRM Internet Facing (IFD), users may be presented a Windows login dialogue box when they try to access the CRM Help menu.
They will not be able to log in with the login box, and they will get an "Access denied" error message.
To fix this issue, edit the Help virtual directory on the CRM web site to accept anonymous authentication. In IIS MGR 6.0, expand Microsoft Dynamics CRM web site tree under the Web sites folder. Right Click on "Help" and select properties
On the Directory Security tab, click "Edit" under the "Authentication and Access control" section
Click the checkbox to "Enable anonymous authentication." Click OK.
That's it. Now your IFD users can access help files.

And what about regestry setting?
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSCRM]
"AnonymousAccessToHelpVDir"="True"
Is it not the same?
Posted by: Dmitriy Ilyin | April 15, 2009 at 12:26 PM
Dmitriy,
it MAY be. I'm aware of the registry key; however, from my tests, changing it to True is not sufficient. In my tests, IFD users are still prompted for Windows login. I assume that is what it's there for, but it's not documented anywhere, and I haven't been able to make it work. I know that the approach that I describe works.
Have you made it work via registry change?
Posted by: Joel Lindstrom | April 15, 2009 at 12:30 PM
>>Have you made it work via registry change?
Joel,
It's seems to me i made those changes on my Windows 2008 along time ago and forgot about it :).
For my IFD deployment this regestry setting also does not have effect.
Posted by: Dmitriy Ilyin | April 16, 2009 at 03:40 AM