Error: "HTTP Error 500.19 - Internal Server Error"

Products

• CA Client Automation - IT Client Manager
• CA Client Automation

Issue/Introduction

The URL http://localhost/UDSM_R11_WebService/mod_gsoap.dll fails to load and shows the following error message: 

HTTP Error 500.19 - Internal Server Error. The requested page cannot be accessed because the related configuration data for the page is invalid. 

In addition, you receive an error when opening the Default Web Site ISAPI Filters applet.

Filename:

\\?\C:\Windows\System32\inetsrv\config\applicationHost.config

Line number: 771

Error: Cannot add duplicate collection entry of type 'filter' with

unique key attribute 'name' set to 'UDSM_R11_WebConsole'

Environment

CA Client Automation - All Versions

Resolution

1. Edit  C:\Windows\System32\inetsrv\Config\applicationHost.config to remove the duplicate/invalid reference.
2. Find the section of the file that matches the below: 
   
   

   <isapiFilters>

      <filter name="ASP.Net_2.0.50727-64" path="%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_filter.dll" enableCache="true" preCondition="bitness64" />

      <filter name="ASP.Net_2.0.50727.0" path="%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_filter.dll" enableCache="true" preCondition="bitness32" />

      <filter name="UDSM_R11_WebConsole" path="E:\Program Files (x86)\CA\DSM\Web Console\jakarta\isapi_redirect.dll" enabled="true" enableCache="true" />

   </isapiFilters>

       <filter name="UDSM_R11_WebConsole" path="E:\Program Files (x86)\CA\DSM\Web Console\jakarta\isapi_redirect.dll" enabled="true" enableCache="true" />

3. Remove the second instance of the duplicate; in this case, the one teat exists outside the <isapiFilters>...</isapiFilters> section and save.

4. The finished section will look like the following:
    <isapiFilters>

       <filter name="ASP.Net_2.0.50727-64" path="%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_filter.dll" enableCache="true" preCondition="bitness64" />

       <filter name="ASP.Net_2.0.50727.0" path="%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_filter.dll" enableCache="true" preCondition="bitness32" />

       <filter name="UDSM_R11_WebConsole" path="E:\Program Files (x86)\CA\DSM\Web Console\jakarta\isapi_redirect.dll" enabled="true" enableCache="true" />

   </isapiFilters>

5. From the command prompt, run the following: 
   
   

   caf stop Tomcat

   iisrestart

   caf start Tomcat

6. Try the URL again and the console should now be working properly.