Intel Chipset Software Installation Utility installs the Windows INF files. The INF files inform the operating system how to properly configure the chipset for specific functionality, such as AGP, USB, Core PCI, and ISAPNP services.
Changes in Current Version:
-Signed CAT files (and related INF files) for the 852/855 GM/GME chipsets
-Updated software package to include the ICH4-M folder which contains the files needed for extraction of INF's for preload purposes specific to ICH4 mobile chipsets
-Removed Windows 98SE 845G signed INF without the GE/PE/GV chipsets in the name string and replaced it with the v4.04 845G unsigned INF that has the GE/PE/GV chipsets added to be consistent with v4.04 release
Here's other similar drivers that are different versions or releases for different operating systems: