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  3. Windows 10 update breaks IIS

Windows 10 update breaks IIS

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  • H Offline
    H Offline
    Herbie Mountjoy
    wrote on last edited by
    #1

    Has anyone else experienced this? My IIS 10 server has been functioning fine for several months. Today I get [HttpException (0x80004005): Could not load type '%Windir%\System32\inetsrv\compdyn.dll'.] on every single page that uses ASP.Net. My only guess is that an automatic Win 10 update has changed something but what? Bah!!! I may not last forever but the mess I leave behind certainly will.

    P Richard DeemingR 2 Replies Last reply
    0
    • H Herbie Mountjoy

      Has anyone else experienced this? My IIS 10 server has been functioning fine for several months. Today I get [HttpException (0x80004005): Could not load type '%Windir%\System32\inetsrv\compdyn.dll'.] on every single page that uses ASP.Net. My only guess is that an automatic Win 10 update has changed something but what? Bah!!! I may not last forever but the mess I leave behind certainly will.

      P Offline
      P Offline
      phil o
      wrote on last edited by
      #2

      You should check, in your Server Manager, that the service's role for IIS : Dynamic Compression, is installed.

      You always obtain more by being rather polite and armed than polite only.

      1 Reply Last reply
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      • H Herbie Mountjoy

        Has anyone else experienced this? My IIS 10 server has been functioning fine for several months. Today I get [HttpException (0x80004005): Could not load type '%Windir%\System32\inetsrv\compdyn.dll'.] on every single page that uses ASP.Net. My only guess is that an automatic Win 10 update has changed something but what? Bah!!! I may not last forever but the mess I leave behind certainly will.

        Richard DeemingR Offline
        Richard DeemingR Offline
        Richard Deeming
        wrote on last edited by
        #3

        I've not seen that one, but I don't use dynamic compression locally. Turning off dynamic compression should get you back up and working for now. You might need to uninstall/reinstall the feature to get it working again.


        "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

        "These people looked deep within my soul and assigned me a number based on the order in which I joined" - Homer

        H M 3 Replies Last reply
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        • Richard DeemingR Richard Deeming

          I've not seen that one, but I don't use dynamic compression locally. Turning off dynamic compression should get you back up and working for now. You might need to uninstall/reinstall the feature to get it working again.


          "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

          H Offline
          H Offline
          Herbie Mountjoy
          wrote on last edited by
          #4

          Thanks. I'll give that a try. Still don't know why this just stopped working. We are philosophical about power outages here. A.C. come, A.C. Go. I may not last forever but the mess I leave behind certainly will.

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          • Richard DeemingR Richard Deeming

            I've not seen that one, but I don't use dynamic compression locally. Turning off dynamic compression should get you back up and working for now. You might need to uninstall/reinstall the feature to get it working again.


            "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

            M Offline
            M Offline
            Mark_Wallace
            wrote on last edited by
            #5

            Richard Deeming wrote:

            You might need to uninstall/reinstall the feature windows 10 to get it working again.

            New keyboard? That was a Hell of a typo.

            I wanna be a eunuchs developer! Pass me a bread knife!

            H 1 Reply Last reply
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            • M Mark_Wallace

              Richard Deeming wrote:

              You might need to uninstall/reinstall the feature windows 10 to get it working again.

              New keyboard? That was a Hell of a typo.

              I wanna be a eunuchs developer! Pass me a bread knife!

              H Offline
              H Offline
              Herbie Mountjoy
              wrote on last edited by
              #6

              Oh so tempting... Manged to recover by rolling back to an earlier restore point. Still no idea what caused it though. We are philosophical about power outages here. A.C. come, A.C. go.

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              • Richard DeemingR Richard Deeming

                I've not seen that one, but I don't use dynamic compression locally. Turning off dynamic compression should get you back up and working for now. You might need to uninstall/reinstall the feature to get it working again.


                "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

                H Offline
                H Offline
                Herbie Mountjoy
                wrote on last edited by
                #7

                An update for anyone who is interested. I managed to replicate this issue by turning on dynamic compression. It worked fine until the machine was rebooted and then the same symptoms were presented. Turning dynamic compression off didn't help and uninstalling it didn't do any good. Once again I had to restore to an earlier point. Now I have no idea if dynamic compression was somehow turned on to cause this. I never use it and as far as I was aware it had not been installed. Looking at the config history only showed static compression enabled and dynamic compression disabled. Similarly no clues in the event viewer logs. No IIS logging was enabled. My bad. I suspect this may have been a permissions issue. The offending dll having been locked for some reason. Meanwhile, it aint broke and I'm not going to fix it until it is. Thanks for your help with this. I may not last forever but the mess I leave behind certainly will.

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