Win98 installation MSXML 3 SP4 package
http://download.microsoft.com/download/2/4/6/2464A96D-F368-4396-B119-D2DF724EC181/msxml3chs.msi
MSI installation tool
Win98:
Http://download.microsoft.com/download/windowsinstaller/install/2.0/w9xme/en-us/instmsia.exe
NT / win2000:
http://download.microsoft.com/download/windowsinstaller/install/2.0/nt45/en-us/instmsiw.exe