What is the "rundll32.exe" process on Windows 8? Is the "rundll32.exe" process a virus? Can I terminate the "rundll32.exe" process?

"rundll32.exe" process represents "Windows host process (Rundll32)" program.

"rundll32.exe" process is normally running under the parent process "Boot" as shown in the process tree below:

Boot
   rundll32

On the Processes tab of "Task Manager", "rundll32.exe" process may be listed as:

Image Name                 Memory   Description
--------------------   ----------   -----------
rundll32.exe              9,772 K   Windows host process (Rundll32)

Additional information about "rundll32.exe" process:

Command line:
   "C:\Windows\System32\rundll32.exe" "C:\Program Files (x86)\Intel\Bluetooth\btmshell.dll",TrayApp

Programe file information:
   Name: rundll32.exe
   Location: C:\Windows\System32\rundll32.exe
   Description: Windows host process (Rundll32)
   Version: 6.2.9200.16384 (win8_rtm.120725-1247)
   Size: 51712 bytes
   Last modified: 7/25/2012 11:08:39 PM
   Company Name: Microsoft Corporation
   
Some data files used:
C:\Windows\System32
C:\Windows\System32\en-US\rundll32.exe.mui

C:\Windows\Fonts\StaticCache.dat

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\Nls\Sorting\Ids
HKLM\SOFTWARE\MICROSOFT\WindowsRuntime\CLSID
HKCR\ActivatableClasses\CLSID

Some DLL libraries used:
C:\Windows\SYSTEM32\ntdll.dll
C:\Windows\system32\KERNEL32.DLL
C:\Windows\system32\KERNELBASE.dll
C:\Windows\system32\USER32.dll
C:\Windows\system32\msvcrt.dll
C:\Windows\system32\imagehlp.dll
C:\Windows\system32\SHLWAPI.dll
C:\Windows\system32\GDI32.dll
C:\Windows\system32\IMM32.DLL
C:\Windows\system32\MSCTF.dll

"rundll32.exe" process is not a virus. You should not terminate "rundll32.exe" process.

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