The following three environment variables are set by iisexpress.exe
during the process startup.
%IIS_BIN%
– refers to IIS Express installation folder (%PROGRAMFILES%\IIS Express
)%IIS_USER_HOME%
–%USERPROFILE%\Documents\IISExpress
%IIS_SITES_HOME%
–%USERPROFILE%\Documents\My Web Sites
%SYSTEMDRIVE%
– is a standard windows system environment variable