/noprofile specifies that the user's profile should not be loaded.
This causes the application to load more quickly, but
can cause some applications to malfunction.
/profile specifies that the user's profile should be loaded.
This is the default.
/env to use current environment instead of user's.
/netonly use if the credentials specified are for remote
access only.
/savecred to use credentials previously saved by the user.
This option is not available on Windows XP Home Edition
and will be ignored.
/smartcard use if the credentials are to be supplied from a
smartcard.
/user <UserName> should be in form USER@DOMAIN or DOMAIN\USER
program command line for EXE. See below for examples