IIS 7 and Above
ISAPI Extension cannot write temp files
Re: ISAPI Extension cannot write temp files
Mar 10, 2019 04:23 PM|lextm|LINK
Yes it is and that link does not say anything about it.
“For example, if you create an application pool with the name "MyNewAppPool," a security identifier with the name "MyNewAppPool" is created in the Windows Security system.”