Work in progress:

Setup:
 - Configure a VM t-win7-32 with default windows 7 32-bit settings and disk size.
 - VBoxManage unattended install t-win7-32 --iso i:\Windows\7\rtm\en_windows_7_enterprise_x86_dvd_x15-70745.iso \
        --hostname=t-win7-32.smoketest --user=Administrator --password=password
 - Start VM and perform unattended installation.
 - Eject DVD and floppy.
 - Create a user 'test' without a password.
 - Create a user 'test2' with 'test2' as password.
 - Enable the guest user.
 - Insert the validation kit ISO and install the test execution service in
   'both' mode (see vboxtxs-readme.txt) and using the task scheduler. Make
   sure to okay the firewall modification and test it.
 -