When ever I try to install civ 3 complete on my vista computer it has an error that says "1607 Unable to install InstallShield Scripting Runtime." I was wandering if you guys could help. It was installed once on this computer and then took it off and I'm trying to get it back on.

Aw i can fix that for you download this update for vista then try it worked for me

Method 2: Download and install the latest Windows Installer package
To install the latest Windows Installer, visit the following Microsoft Web site:
http://go.microsoft.com/fwlink/?LinkId=120486
Notes
Download the .msu or .exe file for your version of Windows.
"x86" means that you have a 32-bit version of Windows. "x64" means that you have a 64-bit version of Windows.
If you are not sure about which operating system you have, download and install the x64-based version. In the instructions, you will find information about the appropriate file to use.
A newer version than version 4.5 of the Windows Installer might be available. To search for a newer version, visit the following Microsoft Web site:
http://msdn.microsoft.com/en-us/library/aa372856(VS.85).aspx
If the problem continues to occur, go to Method 3.