Dllhost.exe concerns

When I open up task manager, there's the normal dllhost.exe initalized by SYSTEM and then, whenever I open anything and sometimes randomly, another instance opened initialized by my user name appears and disappears. I ended the ComsysApp service and the first dllhost.exe stopped appearing, but the other one still keeps popping up. Is this normal? It's located under system32 when I ever I choose to go to it's location from task manager.
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More about dllhost concerns
  1. then you may give some space for virus in windows folder, do you have updated anti-virus ..
  2. seems to be infected with some malware!
    Download & Install the following! All are freeware only!

    1.Avira Antivir (http://www.free-av.com/en/download/index.html)
    2.Malwarebytes (http://www.malwarebytes.org/)
    3.CCleaner (http://www.piriform.com/ccleaner/download)
    Do a complete system scan & check the results!
  3. It is a file without information about the maker of this file. It is not a Windows core file. Program listens for or sends data on open ports to LAN or Internet. The program has no visible window. The file is an unknown file in the Windows folder. comsysapp.pif is able to record inputs. Therefore the technical security rating is dangerous.

    Open a command prompt (start run type cmd press enter) type
    sc delete "SwPrv"
    sc delete "COMSysApp"
    press enter, type exit and press enter to exit the command prompt

    Is this file still present or did your av program remove it ?
    c:\windows\system32\winowl32.dll

    Set windows to show hidden extensions file's and folder's.
    click for> instructions<.
    Delete this appatch folder
    C:\Documents and Settings\Caliber\Application Data\AppPatch
    and the symbols folder is it exists
    C:\PROGRAM FILES\COMMON FILES\SYMBOLS

    Update Sun Java Runtime Environment (JRE)
    Afterwards it's important to uninstall the old version's via addremove programs.
  4. Use Prevx 3.0 to remove DLLHOST.EXE, along with any other viruses, spyware, adware, trojans, rootkits, worms, information stealers, keyloggers, bots, and other form of malicious threat that may reside on your PC.

    http://windows7.iyogi.net/support/windows-7-antivirus-support
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