Parser Error Message: Access is denied: ‘Ajax’

Category: ASP .Net

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Access is denied: 'Ajax'.
Source Error:
Line 196:
Line 197:
Line 198:
Line 199:
Line 200:
Source File: c:\windows\\framework\v1.1.4322\Config\machine.config Line: 198
Assembly Load Trace: The following information can be helpful to determine why the assembly 'Ajax' could not be loaded.

Solution For Access Is Denied Error

There are three solutions for this error. Try it one by one.

  1. Give the user “machine_name\ASPNET” appropriate access rights on Ajax.dll (Right click on the file. Go to “Properties…” > “Security” and then select the user and check appropriate box for permission.)
  2. Indexing service do not refresh the list of dlls. So If you are running Indexing service, it locks dll and this error message pops up, so disable Indexing service. Read more about disabling Indexing service at Access Denied Error
  3. If Indexing service is already disabled, then the culprit is your antivirus program. Disable all antivirus programs, antispy or antixyz programs you have. Now again try to get the same error. I bet you wont get it.




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  1. Catch ex As Exception says:

    Catch ex As Exception

    End Try

  2. Anthony says:

    That was very very usefull. Thank you!

  3. Natasha says:

    Please advice, which is the right way to Give the user “machine_name\ASPNET” appropriate access rights on Ajax.dll