6 Replies Latest reply on Feb 7, 2012 5:31 PM by alex_n

    McHost.exe Application Errors

      Just to be clear, I'm having problems with McHost.exe, NOT McSvHost.exe.

       

      The errors began on 01/05/12 after performing an update to McAfee's Antivirus Plus.  The update required a restart.

       

      After this restart McHost.exe began giving me application errors every time I boot my PC, and every time that Antivirus Plus invokes it.

       

      I used Task Manager to kill the process tree for McAgent.exe, then restarted the program with the shortcut for McAfee AntiVirus Plus located in Start\Programs\McAfee.  After it restarts, it gives me an error for McHost.exe again.  So, the problem seems to be with the McHost.exe itself.

       

      I never had any problems before that update.

       

      I also began getting a shortcut to Antivirus Plus placed on my desktop, but that, thank god, has been resolved.

       

      Every day I check the following location in AntiVirus Plus. 

       

      Navigation/Quarantined and Trusted Items/Quarantined Potentially Unwanted Programs

       

      There are usually some bad cookies that Antivirus Plus catches and that I have to delete, but since the McHost.exe application errors have been occuring, I haven't seen one bad cookie in there, which leads me to believe that I am missing some protection provided by McHost.exe.  It is not catching the bad cookies.

       

      Am I not fully protected at the moment?  Please answer this question.

       

      Also, could you please explain what McHost.exe does?

       

      I haven't installed any new software, and I don't have any of the software that has been discussed in other posts, such as Alcohol.

       

      I don't use McAfee's Firewall.  I use ZoneAlarm.  So, Net Guard shouldn't be a factor either.  But, just to be safe, I temporarily turned on McAfee's Firewall, unchecked Net Guard, then shut the firewall off again.

       

      The last time I had an error I used Process Explorer to copy the process information for McHost.exe.  This is what I got.

       

      "C:\Program Files\Common Files\McAfee\Core\mchost.exe" {d193df30-3059-4654-ac82-727b1eb92f21} /pid=2808

       

      I tried finding the CLSID {d193df30-3059-4654-ac82-727b1eb92f21} in the registry and found nothing.  That seemed strange to me that McHost.exe is referencing a CLSID that doesn't seem to exist.  Is McHost.exe missing something that it needs to function properly?

       

      Please help me fix this.

       

      Oh, by the way.  I also ran Virtual Technician and it reports everything is OK.

       

      So, I am at a loss as to what to do, except beg all the McAfee techs to PLEASE look into this.

       

      Thanks

        • 1. Re: McHost.exe Application Errors

          Anybody going to address this?

          • 2. Re: McHost.exe Application Errors

            I got the same exact issue here.

             

             

            I hope to get positive news.

            • 3. Re: McHost.exe Application Errors

              By reading other threads this seems to be a pretty common problem people are having. 

               

              Don't I at least deserve some kind of response?

               

              I mean it's been 10 days and not one moderator or McAfee tech has responded to my post.

               

              Why not?

              • 4. Re: McHost.exe Application Errors
                JaiPrakash

                Hi Lifeblood,

                 

                Sorry for the delayed response ,  could you please let us know the version details of your McAfee programs ;

                McAfe Security center:

                Version :

                Build:

                Virus scan :

                Version:

                Build:

                DAT version :

                 

                Are you using a specific software that’s called Alcohol 120% ??

                Please provide us with a screen shot of the error if possible

                 

                Regards,

                 

                • 5. Re: McHost.exe Application Errors

                  Ok, here it is.

                   

                  McAfee Product Version Information - 2012-02-02 1103am.bmp 

                   

                  Why doesn't McAfee put a link in the About screen that will open a log file containing the About information, so we can copy & paste it, instead of having to take screen shots and having to piece them together in order to show you the information?

                   

                  McAfee makes everything so difficult.  Much more than it needs to be.

                   

                  As I mentioned in my original post, no, I do not have Alcohol 120% installed.  And, I also have not installed any new software.  So, the problems are all with McAfee.

                   

                  All of these errors started with the update that required a restart on 01/05/2012.  The update that started putting a shortcut to McAfee's AntiVirus Plus on my Desktop.  The shortcut problem has been resolved, but the application errors keep occurring.

                   

                  Since so many people started having problems after that update, that weren't having problems before, why don't we roll back to the version that was working fine, before the bad update, while McAfee figures out what all the problems are?

                   

                  Also could you please answer the following questions that were in my original post?

                   

                  "Every day I check the following location in AntiVirus Plus. 

                   

                  Navigation/Quarantined and Trusted Items/Quarantined Potentially Unwanted Programs

                   

                  There are usually some bad cookies that AntiVirus Plus catches and that I have to delete, but since the McHost.exe application errors have been occurring,  I haven't seen one bad cookie in there, which leads me to believe that I am missing some protection provided by McHost.exe.  It is not catching the bad cookies.

                   

                  Am I not fully protected at the moment?  Please answer this question.

                   

                  Also, could you please explain what McHost.exe does?"

                   

                  Another problem I am experiencing is with SiteAdvisor. 

                   

                  When I run Virtual Technician it says everything is OK except for SiteAdvisor.  It says that I need to update to the newest version.  But, you can see from the About picture I showed you before that it IS up to date.  Version 3.4.0.143.  See picture below.

                   

                  Virtual Technician Results - Need SiteAdvisor Update 2012-02-02 1119am.bmp

                   

                   

                  If I open up Internet Explorer and look at the About information in the McAfee SiteAdvisor Toolbar it also shows that I have the most up to date version.  Version 3.4.0.143.  See picture below.

                   

                   

                  Internet Explorer McAfee SiteAdvisor Toolbar About Information 2010-02-02 1129am.bmp

                   

                   

                  I clicked on the "Check for updates" link on that screen, downloaded the latest SiteAdvisor installation .exe, and tried to re-install it.  And, I got the message 'Installation Didn't Complete Successfully'.  See picture below.

                   

                   

                  McAfee SiteAdvisor 'Installation Didn't Complete Successfully' Message 2012-02-02 1122am.bmp

                   

                   

                  I also tried completely uninstalling SiteAdvisor and re-installing it with the latest SiteAdvisor installation .exe, and got the same message again.

                   

                  I had to go back to a SiteAdvisor installation .exe that I had downloaded on 10-17-2011 in order to get it to install.  When I installed with that .exe it says everything is up to date.  Version 3.4.0.143.  So, I don't know why the hell Virtual Technician thinks it is NOT up to date?  And, I don't know why the latest SiteAdvisor installation .exe does NOT work?

                   

                  Very frustrating.

                   

                  Everything was working beautifully before the update that I received on 01/05/2012.  Since then nothing, but problems.

                  • 6. Re: McHost.exe Application Errors

                    Hello LifeBlood,

                     

                    can you tell us the following info:

                     

                    -Windows version:

                    -Internet Explorer version:

                     

                    -Do you have Alcohol 120% installed on your system??

                     

                     

                    It appears there's an incompatibility issue with Alcohol 120% that generates the McHost error when McAfee tries to update.

                     

                    -Which is the frecuency of this error happening?  3-4 times a day?