Recent Download Center newsletter noted the Windows Installer 3.1 is still in the Top 5 downloads more than three years after its original release.
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats
Open, edit, and save documents, workbooks, and presentations in the file formats new to Microsoft Office Word, Excel, and PowerPoint 2007.
Windows Internet Explorer 8 Beta 2 for Windows XP
Internet Explorer 8. Faster, Easier, More Private, and More Secure.
Windows Internet Explorer 7 for Windows XP
Download the latest version of the world's most popular Web browser.
Windows Installer 3.1 Redistributable
The Microsoft® Windows® Installer is an application installation and configuration service. WindowsInstaller-KB893803-x86.exe is the redistributable package for installing or upgrading Windows Installer.
.NET Framework Version 2.0 Redistributable Package (x86)
The Microsoft .NET Framework version 2.0 (x86) redistributable package installs the .NET Framework runtime and associated files required to run applications developed to target the .NET Framework v2.0.