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webClient schedules getting error 'request for permission of type' or .net control error on Webclient reports


webClient schedules getting error 'request for permission of type'




Require to run the Caspol commands.


Run the Caspol commands

Here is a batch file that runs these commands without typing them in.

Click Here to download the batch file


Rename the caspolwebclient.txt to .bat

Run the batch file at each WS that needs to access webclient schedules.

Below are the actual commands:

The following command will add FullTrust to the Internet_Zone in DotNet 2.0:
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\caspol.exe -m -addgroup Internet_Zone -zone InterNet FullTrust -name FullTrust

The following command will add FullTrust to the Trusted_Zone in DotNet 2.0:
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\caspol.exe -m -addgroup Trusted_Zone -zone Trusted FullTrust -name FullTrust

This will result in output like:
The operation you are performing will alter security policy. Are you sure you want to perform this operation? (yes/no)

Then select Y and you should see:
Added union code group with "-zone" membership condition to the Machine level.

In some configurations, you may need to add the IIS computer into Internet Explorer as a trusted site for each browser.

  1. Internet Explorer > Internet Options > Security > Click trusted Sites > Click Sites
  2. Type in http://yourservername/webclient and click Add (Ex. http://tacweb/webclient)
  3. Deselect the checkbox for Require server verification (httpsSmiley Happy for all sites in this zone.
  4. Click OK and Ok
  5. Close Internet Explorer and access webclient

See Lessons Learned Article #15179 if this is for 1.94 SP1 - Uninstalling KB2858725

* It may be necessary to give specific permissions in the registry if you are seeing system.permissions.UIPermission, mscorlib

Make a backup of the

From Windows, Start> Run> Regedt32.exe Expand the hives(folders) to


Right Click on and select export, name the file and save. (This file can be used to restore the original settings of this branch) 

Right click on this folder again and select permissions, select Users and add Full Control

See below for snapshots


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