Vista problems? Solution here
While there may be other issues with Vista, please try the following if you are not able to launch SWG.
These instructions will help you load any Windows XP game in Vista:
1. Right click on the program launch icon
2. Left click on "Properties".
3. In the new window that pops up click on the "Compatibility" tab.
4. In the "Compatibility Mode" area check the box next to "Run this program in compatibility mode for:"
5. In the drop down list make certain that "Windows XP (Service Pack 2)" is selected.
6. Under "Privilege Level" make certain that the box next to "Run this program as administrator" is checked.
7. Click on "Apply" then click on "Ok".
8. Double click on the program launch icon.