The genuine msiexec.exe file is a software component of Microsoft Windows by Microsoft.
Microsoft Windows is an operating system. Windows Installer is an application programming and software component of Microsoft Windows. Msiexec.exe is part of the Windows Installer utility and is used to install MSI and MSP packages
Previously known as Microsoft Installer, the Windows Installer is an important part of the Windows OS that is designed to install, maintain and remove software. The installation information is included in the installation packages, related databases and COM structured storages commonly referred to as MSI files. This utility gives the user complete control over several processes such as installing, display and logging options, and although this Windows service can be disabled, doing so may affect the services that depend on it.