Fix Dllhost.exe Error – Dllhost.exe File Repair

Dllhost.exe, also known as COM Surrogate, is created as a Windows DCOM DLL Host process that used by the COM DLL (in- process) server to run COM+ DLLs and controls processes in the Internet Information Services (IIS), and support many smooth operations like DisplaySwitch.exe and programs like RockMelt and VIPRE Antivirus. However, dllhost.exe error issue on the computer make many people mad and have no idea to fix it for good.

Dllhost.exe error

There is no a absolutely common cause for this error issue occurring on the computer, for that it can be due to many possible situations such as:

  • Spyware or virus infection
  • Error in the security initialization for Dllhost.exe
  • Corruption of dllhost.exe process or associated applications like DisplaySwitch, DisplaySwitch.exe or dllhst3g
  • Outdated issue of dllhost.exe

Symptoms of getting dllhost.exe error

  • Client’s creation API gets a CO_E_SERVER_EXEC_FAILURE error
  • High CPU/Memory usage
  • More serious virus invasion on the computer system
  • Associated application cannot load or operate as usual
  • System registry errors and other problems occurs continuously

How can fix dllhost.exe error effectively

Step one – scan virus infection

Getting virus infection is alway the terrible and urgent issue on the computer, so to fix dllhost.exe error, you should firstly check the security of your Windows system, and a powerful antivirus program is necessary. If you have installed one on the PC, you should update the program with newest virus database, and then scan the whole system for virus infection.

Virus:DOS/Dan_1500.C.intd and Program:Win32/Delf.AO are two malicious virus that often sneak to the computer, and modify or pretend themselves as the legitimate process file on the computer for avoiding the virus detection. Therefore, a professional antivirus program is very needed for the computer protection and virus removal.

Step two – change the machine-wide authentication level

Microsoft has been confirmed that the dllhost.exe error is a bug in the Microsoft products, and they also provide some tips to fix dllhost.exe error well for the computer users, and you should try what the Microsoft suggest to – change the machine-wide authentication level. When you go to set the machine-wide authentication level and it must be None, and then you can use a custom surrogate instead of Dllhost.exe to run on your computer system. There are many surrogate applications available on the Internet, you can choose to one you think its most suitable for your computer system.

Step three – check and clean system registry errors to fix dllhost.exe error

System registry is often a big cause of various error issues on the computer like DLL, EXE error and error code, to avoid these annoying problems effectively and easily, you should check your system registry regularly, and instantly find out and fix any problem existed on the computer system.

Clean up related registry issues is a tough work for many computer users, for they lack of the professional knowledge about computer and the experience of repairing computer problems, more importantly, system registry is a place that stores many essential components which closely related to the program and system performance. Therefore, for te sake of computer security and stability, it is all suggested to apply an outstanding registry fix application even you are a computer expert, all of registry issues will be detected and cleaned up with simple steps. Thus, you can also fix dllhost.exe error with ease.

Hollis White

A tech expert that would like to offer IT support and services about computer error fix as much as possible, has written and shared many articles on computer maintainance and fixing different kinds of error problem online.

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