The Orange Box Games Crash while Preparing to Launch

The Orange Box Games Crash while Preparing to Launch
Question

Team Fortress 2, Half Life 2: Episode 2, and Portal go to "Preparing to launch..." then quit. How can I fix this?
Answer

Newer Source games require SSE in order to function properly. Please ensure that your processor includes SSE support.
Determining SSE support
c
1. Download our cputest.exe and save it to your desktop.
2. Open a command prompt.
* Go to Start > Run.
* Type in: cmd.
* Press Enter.

By default, your command prompt should open to: C:\Documents and Settings\.
3. Type in cd desktop to change to your desktop directory and press Enter. Your active directory should now look like this: C:\Documents and Settings\\Desktop\.
4. To run the program, type in cputest.exe and press Enter. The cputest will return an analysis of your CPU that will look something like this:
*

Valve System Analyzer ver. 0.2 Sep 27 2007

CPU Analysis
--------------------------------------------
Vendor : GenuineIntel
FuncIds : 10
Stepping: 6
Model : 15
Family : 6
Type : 0
XModel : 0
XFamily : 0
CacheLn : 64
PN : No
CLFlush : Yes
MMX : Yes
SSE : Yes
SSE2 : Yes
SSE3 : Yes
HTT : Yes
XVendor :
XFuncIds: 8
MMXX : No
3DNow! : No
3DNow!+: No
--------------------------------------------

5. Look specifically for the SSE section.

If you see SSE : No then your processor does not meet the minimum system requirements to run the new Source games. You must upgrade your motherboard and/or processor in order to play these games.

If you see SSE : Yes then your processor meets the SSE support requirement of new Sources games.