kb24: Installer fails before the first screen

Data Execution Prevention, which is installed with Windows 2003 SP1, must be configured to allow the installer to run. To do this:
a. Right Click My Computer and select Properties
b. Select the Advanced Tab
c. Select Settings under the Performance Header
d. Select the Data Execution Prevention Tab
e. Select the "Turn on DEP for all programs and services except those I select radio button"
f. Click the Add button and browse to the Longitude installer (e.g. HeroixLongitude{Version}.exe)
g. Click the Open button to add it to the list of allowed programs and click the OK button until the System properties applet closes