c++ - Calling OpenWindowStation from a service running under a "user" account -

my service start interactive client process similar this: https://msdn.microsoft.com/en-us/library/windows/desktop/aa379608(v=vs.85).aspx

it works when service log on local system, , work if it's running under administrator account with se_assignprimarytoken_name , se_increase_quota_name privileges.

my issue when using standard user account or local service, fails @ openwindowstation error code 5 (access denied).

// handle interactive window station. hwinsta = openwindowstation(_t("winsta0"),               // interactive window station                              false,                       // handle not inheritable                             read_control | write_dac);   // rights read/write dacl 

is possible call openwindowstation standard user account or service must run under administrator account? tried local policies without success

thanks!

unfortunately can't done, seems administrator can open interactive station.