I am getting the following exception. I have given full control to Asp.net account on Eventlogs in Registry edit.
[SecurityException: The source was not found, but some or all event
logs could not be searched. Inaccessible logs: Security.]
System.Diagnostics.EventLog.FindSourceRegistration(String source, String machineName, Boolean readOnly, Boolean wantToCreate) +664
System.Diagnostics.EventLog.SourceExists(String source, String machineName, Boolean wantToCreate) +109
System.Diagnostics.EventLog.SourceExists(String source) +14 Microsoft.ApplicationBlocks.ExceptionManagement.DefaultPublisher.VerifyValidSource() +41
EventLog.SourceExists enumerates through the subkeys of
HKLM\SYSTEM\CurrentControlSet\services\eventlog to see if it contains a subkey with the specified name. If the user account under which the code is running does not have read access to a subkey that it attempts to access (in your case, the
Security subkey) before finding the target source, you will see an exception like the one you have described.
The usual approach for handling such issues is to register event log sources at installation time (under an administrator account), then assume that they exist at runtime, allowing any resulting exception to be treated as unexpected if a target event log source does not actually exist at runtime.