Urgent help needed with Handler "AboMapperCustom-360752472" has a bad module "IsapiModule" in its module list RRS feed

  • Question

  • User1248258412 posted

    I was tested which ever I found on the net and still keep getting error message as below. Someone please guide...

    I have granted all access and also register the iis with run %windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -I

    HTTP Error 500.21 - Internal Server Error

    Handler "AboMapperCustom-360752472" has a bad module "IsapiModule" in its module list


    Most likely causes:

    • Managed handler is used; however, ASP.NET is not installed or is not installed completely.
    • There is a typographical error in the configuration for the handler module list.
    • During application initialization, either the application initialization feature has set skipManagedModules to true, or a rewrite rule is setting a URL that maps to a managed handler and is also setting SKIP_MANAGED_MODULES=1.
    Wednesday, August 26, 2015 1:54 AM


  • User-166373564 posted


    Handler "AboMapperCustom-360752472" has a bad module "IsapiModule" in its module list

    According to the error message above, please go to Control panel -> Programs and Features -> Turn Windows features on or off. Make sure you have the following selected:

    Please let me know if you need any help.

    With regards,


    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Thursday, August 27, 2015 2:36 AM