ISAPI - 401 3 5 ACL error

We have an application that uses an ISAPI dll that we are moving from IIS/NT
4.0 to IIS 6.0 on Windows Server 2003 SP1.
We are using basic auth and SSL.
When I attempt to login and execute the dll the login prompt appears three
times and I receive the '401 3 5 - Unauthorized: Access is denied due to an
ACL set on the requested resource.' error message.
When I attempt to display an htm or txt file in the same folder I get the
login prompt one time, login and display the page.
We have walked through the Windows permissions on the folders and the IIS
permissions a couple of times. I am sure I am overlooking one somewhere.
Any suggestions or hints will be greatly appreciated.
Thank you, -b

Re: ISAPI - 401 3 5 ACL error

http://blogs.msdn.com/david.wang/archive/2005/07/14/HOWTO_Di agnose_IIS_401_Access_Denied.aspx

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//David
IIS
http://blogs.msdn.com/David.Wang
This posting is provided "AS IS" with no warranties, and confers no rights.
//

"-bert" wrote in message
news:2CADAAC7-4E21-44A3-B80A-549F23A14729@microsoft.com...
> We have an application that uses an ISAPI dll that we are moving from
> IIS/NT
> 4.0 to IIS 6.0 on Windows Server 2003 SP1.
> We are using basic auth and SSL.
> When I attempt to login and execute the dll the login prompt appears three
> times and I receive the '401 3 5 - Unauthorized: Access is denied due to
> an
> ACL set on the requested resource.' error message.
> When I attempt to display an htm or txt file in the same folder I get the
> login prompt one time, login and display the page.
> We have walked through the Windows permissions on the folders and the IIS
> permissions a couple of times. I am sure I am overlooking one somewhere.
> Any suggestions or hints will be greatly appreciated.
> Thank you, -b