Directory of http://herschel.esac.esa.int/hipe/installers/v3.1.1/Windows32/VM/

(/pub/hscinstall/hipe_installers/v3.1.1/Windows32/VM) 
Login successful.

drwxr-xr-x    2 5876     100          4096 Jun 18  2010 .
drwxr-xr-x    3 5876     100          4096 Jun 18  2010 ..
-rwxr-xr-x    1 5876     100      38745824 Jun 18  2010 HIPE_3_1_1_INSTALLER.exe