Process: msiexec.exe (Windows® installer)
from 
Stardock Forums
Stardock Forums
msiexec.exe - General Information
Name:
msiexec.exe (Windows® installer)
Publisher
Microsoft Corporation
Product:
Windows Installer - Unicode
Default location:
%windir%\system32\msiexec.exe
msiexec.exe - Description and Recommendation
msiexec.exe belongs to the Windows Installer Component
and is used to install new programs that use Windows Installer package
files (MSI). This program is important for the stable and secure
running of your computer and should not be terminated.
msiexec.exe - Uninstall Techniques