What is the "msiexec.exe" process on windows 7? Is the "msiexec.exe" process a virus? Can I terminate the "msiexec.exe" process?

"msiexec.exe" process represents "Windowsr installer" program. "msiexec.exe" process is created by the service: "Windowsr installer".

"msiexec.exe" process is normally running under the parent process "services" as shown in the process tree below:

Boot
   wininit
      services
         msiexec

On the Processes tab of "Task Manager", "msiexec.exe" process may be listed as:

Image Name                 Memory   Description
--------------------   ----------   -----------
msiexec.exe               6,476 K   Windowsr installer

Additional information about "msiexec.exe" process:

Command line:
   C:\windows\system32\msiexec.exe /V

Programe file information:
   Name: msiexec.exe
   Location: C:\windows\system32\msiexec.exe
   Description: Windowsr installer
   Version: 5.0.7600.16385 (win7_rtm.090713-1255)
   Size: 128512 bytes
   Last modified: 5/4/2016 11:04:16 AM
   Company Name: Microsoft Corporation
   
Some data files used:
C:\Windows\System32
C:\Windows\System32\en-US\msiexec.exe.mui
C:\Windows\winsxs\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.18837_none_fa3b1e3d17594757

Some registry keys used:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
HKLM\SYSTEM\ControlSet001\Control\Nls\Sorting\Versions
HKLM\SYSTEM\ControlSet001\Control\SESSION MANAGER
HKLM\SYSTEM\ControlSet001\Control\NetworkProvider\HwOrder

Some DLL libraries used:
C:\windows\SYSTEM32\ntdll.dll
C:\windows\system32\kernel32.dll
C:\windows\system32\KERNELBASE.dll
C:\windows\system32\ADVAPI32.dll
C:\windows\system32\msvcrt.dll
C:\windows\SYSTEM32\sechost.dll
C:\windows\system32\RPCRT4.dll
C:\windows\system32\USER32.dll
C:\windows\system32\GDI32.dll
C:\windows\system32\LPK.dll

"msiexec.exe" process is not a virus. You should not terminate "msiexec.exe" process.

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