Topic: cs0016: failed to write the output file "C: \ WINDOWS \ Microsoft. NET \ ***. dll" error handling

After installing the. NET environment, the following error occurs during compilation:
Compiler error message: cs0016: failed to write the output file "C: \ WINDOWS \ Microsoft. net \ framework \ v1.1.4322 \ temporary ASP. net files \***\*****. DLL "--" Access denied."
Error Handling: the cause of cs0016 is that the temporary directory has insufficient permissions, the solution is to add the network service user to the temp Security tab of the Temporary Folder under the Windows directory and grant all permissions.
Restart IIS!