Service Host – Generic Host Process for Win32 Services. The full path to this file should be shown in The Ultimate Troubleshooter as C:\WinNT\System32\Svchost.exe or C:\Windows\System32\Svchost.exe. Windows 2000/XP/2003 only. SVCHOST is a generic process which acts as a host for processes that run from DLLs rather than EXEs. At startup SVCHOST checks the Services portion of the Registry to construct a list of DLL-based services that it needs to load, and then loads them. There can be many instances of SVCHOST running, as there will be one instance of SVCHOST for every DLL-based service or grouping of services (the grouping of services is determined by the programmers who wrote the services in question). Under Windows XP Professional and Windows 2003 you can find out what DLL-based services SVCHOST is running by typing Tasklist /SVC at a Command/MSDOS Prompt (this command is not available in Windows XP Home), while under Windows 2000 you need to use the TLIST –s command from a Command Prompt (MS-DOS Prompt) (depending on how Windows 2000 was installed you may need to download TLIST from the Microsoft website or install it from one of the miscellaneous folders on the Windows 2000 CD).
Recommendation :
An integral part of the operating system, leave alone – multiple instances of SVCHOST is a normal occurrence. If you experience SVCHOST errors, the problem is most likely not with SVCHOST but with the DLLs it is hosting. However, if you experience a lot of SVCHOST errors, and particularly, if the full path to SVCHOST.EXE is not any of the above, then you most likely have a virus (see below).
Many viruses masquerade themselves as SVCHOST to escape detection. Some have names that are similar, such as SCCHOST, others actually drop a program file called SVCHOST in the Windows folder or a Windows subfolder.
Recommendation :
The first recommendation is a simple one : always have a good antivirus product which is regularly updated (automatically preferably) and always renew your updates subscription when it expires. To detect if you have a virus that calls itself SVCHOST, first see if its full path shows up in The Ultimate Troubleshooter as either C:\WinNT\System32\Svchost.exe or C:\Windows\System32\Svchost.exe – if it does not, then it is almost certain you have a virus. Secondly, if you have Windows 95/98/ME rather than Win2000/XP/2003, then it is also almost certain you have a virus. Thirdly, go to the Services tab of The Ultimate Troubleshooter and look for the following service – if you find it then you probably have a virus too :
System Important Message service
det her er hvad jeg har men hvad skal jeg gøre ved det når jeg ikke kan finde noget virus program der kan fjerne det ?