Unable to access Remote Desktop Web Access Site - HTTP 500 -

Posted on 2011-10-05
Last Modified: 2012-06-21
Remote Dekstop web access is not accessible after installing .net 1.1 which was bundled with a program.
I have uninstalled .net 1.1, but am still having the issue.
I have ran a repair on .net 4.0 - same issue.
This is the error I get when I try to browse to the site from the server.
 Error from browsing to the page from IISHTTP Error 500.0 - Internal Server Error
Calling LoadLibraryEx on ISAPI filter "C:\Windows\Microsoft.NET\Framework\v4.0.30319\\aspnet_filter.dll" failed

Windows Server 2008 R2 SP1

Question by:wcoil
    LVL 30

    Expert Comment

    by:Brad Howe

    Don't know if you ran a repair on installer or via commandline. Typically, these issues are caused by mismatched tags.

    Try the following.

    1. Open a command prompt in administrator mode.
    2. Browse to C:\Windows\Microsoft.NET\Framework\v4.0.30319\
    3. run aspnet_regiis -r

    If this doesn't help please provide the OS, (32/64) and your application Pool configuration for further corrections.

    Let us know,

    Author Comment

    The repair on .net 4 was done through add/remove programs.
    Ran this command as an administrator without problem. Still having the same issue.

    Windows Server 2008 R2 SP1 64bit

    Is this what you are looking for for the applicaiton pool configuration?
     Application Pool

    Accepted Solution

    Looks like I got it figured out.
    I ran the following command.
    C:\windows\\framework\v4.0.30319\aspnet_regiis -ua
    -this uninstalled all .net versions from iis
    -I got errors on this, 0x80004005, but i disregarded them and carried on.
    -after that was finish I ran the following command.
    C:\windows\\framework64\v4.0.30319\aspnet_regiis -r
    -this renistalled .net for iis
    -the directories are different from the uninstall and reinstall. I got an error for rdweb after running this on just Framework and not Framework64. So just run it on 64 for both if you can, this is just what worked for me.
    Then I totally reinstalled RDWEB, from remove role service in the Server Management console.
    Everything is working now.
    I can browse to the page without error. Just had to reconfigure my apps.

    Author Closing Comment

    Found the answer out myself.

    Featured Post

    How your wiki can always stay up-to-date

    Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
    - Increase transparency
    - Onboard new hires faster
    - Access from mobile/offline

    Join & Write a Comment

    First of all, clustering IIS is something you should rarely consider doing. In almost all cases, Microsoft Network Load Balancing (NLB) ( is a much better solution when you need to p…
    Debug Tools to analyse IIS process: This article focus on taking memory dumps from IIS to determine which code is taking more time and to analyse which calls hangs/causes more CPU usage. To take dumps,download the following. Install1: To st…
    how to add IIS SMTP to handle application/Scanner relays into office 365.
    Access reports are powerful and flexible. Learn how to create a query and then a grouped report using the wizard. Modify the report design after the wizard is done to make it look better. There will be another video to explain how to put the final p…

    734 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    22 Experts available now in Live!

    Get 1:1 Help Now