the application has crashed. the application will now termin

Hello haggard1987 and welcome to Lockergnome!

Try a manual uninstall.

The manual uninstall procedure includes editing the Windows registry. Incorrectly editing the windows registry can cause Windows to stop working!

1 - Go into My Computer.
2 - Go into your My Documents folder.
3 - Go into the EA Games folder.
4 - Right click on The Sims 2 folder and click Delete.
5 - Click yes when the delete confirmation window appears.
6 - Close the window when it has finished deleting.
7 - Go back into My Computer.
8 - Open drive C.
9 - Go into the Program Files folder and then into the EA Games folder.
10 - Right click on The Sims 2 folder and click Delete.
11 - Click yes when the delete confirmation window appears.
12 - Close the window when it has finished deleting.
13 - Right click on your Recycle Bin and click Empty Recycle Bin.

Now for the Windows registry part.

1 - Click on Start and then click on Run...
2 - Type in regedit and click OK.
3 - Click on the + next to HKEY_LOCAL_MACHINE
4 - Click on the + next to SOFTWARE
5 - Click on the + next to EA GAMES
6 - Right-click on The Sims 2 folder and click Delete.
7 - Click yes when the delete confirmation window appears.
8 - Click on the + next to Electronic Arts
9 - Click on the + next to EA GAMES
10 - Right-click on The Sims 2 and choose Delete.
11 - Click yes when the delete confirmation window appears.
12 - Click on the + next to Microsoft.
13 - Click on the + next to Windows.
14 - Click on the + next to Current Version.
15 - Click on the + next to Uninstall.
16 - If you have the CD edition, right-click on the the Key named {8AB8D458-939E-403F-0097-9BA1C1F013D5} and click Delete; if you have the DVD edition, right-click on the Key named {40C03514-89C3-41BA-0090-3B440256DB87} and click Delete; If you have the UK/European CD edition right-click on the Key named {6E7DD182-9FC6-4651-0095-2E666CC6AF35} and click Delete.
17 - Click yes when the delete confirmation window appears.

Then use CCleaner to cleanup your temporary files and your registry.
After that restart your PC and try installing the game again.