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A major problem has prevented the application from starting


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getting this message 

A major problem has prevented the application from starting

when i try to start up my anti malware program?trying to combine my post with the few others having this


have also been told off for trying to combine my post with others having this problem.


i can not find any info or help on this in the forums.


so was wondering do i now try to get my refund for my remaining subscription and try another antimalware program or is this not allowed also?



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Lets get some debug logs from Emsisoft Anti-Malware. In order to do this, you will first need to run a batch file to enable debug logging. This batch file is contained in the ZIP archive at the this link (this ZIP archive also contains a batch file to disable debug logging).

Please save that ZIP archive on your desktop, extract its contents, and then follow these instructions:

  • Run the enable_debug_output batch file (if your computer has Windows Vista, Windows 7, or Windows 8 then please right-click on the batch file and select Run as administrator).
  • You will see a black window pop up, and then disappear very quickly. After that happens, please restart your computer.
  • Try opening Emsisoft Anti-Malware.
  • Once you have tried to open Emsisoft Anti-Mawlare, hold down the Windows key on the keyboard (the one with the Windows logo on it, usually in between the Ctrl and Alt keys) and tap the R key to open the Run dialog.
  • Type the following into the Run dialog, and then click OK:

  • A window should open and you should see a Logs folder. Right-click on that Logs folder, go to Send to, and select Compressed (zipped) folder.
  • Move the new ZIP archive you created with the logs folder in it to your desktop.
  • Attach the ZIP archive containing the logs to a reply by using the More Reply Options button to the lower-right of where you type in your reply.
Note: If you get an error message when trying to send the Logs folder to a Compressed (zipped) folder then you may need to try a utility such as 7-Zip or WinRar to compress the folder. Both 7-Zip and WinRar have options to create an archive and save it in another location (such as on your desktop), which should prevent the error message. Here are links to the download pages for 7-Zip and WinRar.

After posting the debug logs, you can run the disable_debug_output batch file (be sure to run it as administrator as well) and restart your computer again to disable debug logging.

so was wondering do i now try to get my refund for my remaining subscription and try another antimalware program or is this not allowed also?

You can do that if you want, however please note that we are working on resolving this issue, and we do not intend on leaving you without the protection you paid for for very long. ;)

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I'm having the same problem on 1 out of 3 computers. On the computer with the problem I have removed Emsisoft in Programs and Features , deleted the directory in Program Files (86), then I ran Aces Registry Cleaner. I rebooted then ran the setup for Emsisoft and still had the same problem. I then tried older Emsisoft versions such as 5 & 6. But I will list below what computers I have and the OS's and which one has the problem.


Dell XPS with Windows 8.1 Pro 64bit running Emsisoft with no problems.


Dell Alienware M17X Laptop with Windows 7 Home Premium 64bit with no SP's and running Emsisoft with no problems


Dell Inspiron 1090 Laptop with Windows 7 Home Premium with SP1 32bit and with Emsisoft I can't run any version due the updates that it performs as it's loading and it adds in the latest updates that then causes this application problem. From the initial finish point it works, but from then on it will not start and gets this problem that many are seeing. I have not been able to capture any logs. 


I have Norton 360, SpywareBlaster, and Emsisoft running on all 3 machines, except of course the one now since the last updates.  


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We have determined that this issue is related to our Host Rules. On certain computers running Windows 7 (specifically slower computers such as netbooks, or ones that are older or having performance issues for other reasons) the Emsisoft Anti-Malware service does not start in time, and the Windows system that controls services terminates the service because it took too long to start.

It is possible to replace the Host Rules with an older (and smaller) version to temporarily get Emsisoft Anti-Malware working again, however please note that once Emsisoft Anti-Malware updates its database it will download a new copy of the Host Rules, and if you restart your computer you will once again not be able to start Emsisoft Anti-Malware. If you want to try this workaround to the issue in order to get Emsisoft Anti-Malware working again, then you would either have to leave your computer on all the time (at least until we are able to release a fix for the issue), or you would need to disable automatic updates in order to prevent the Host Rules from being updated.

If you would like to try the workaround, then I have attached an older version of the Host Rules (host_rules.zip) to this message. You can simply save it on the desktop of the computer that is having the issue, and follow the instructions below:

  • Right-click on the host_rules file you saved on your desktop, and select to extract it.
  • Find the Emsisoft Anti-Malware folder, which should be in one of the following locations:
    • C:\Program Files\Emsisoft Anti-Malware
    • C:\Program Files (x86)\Emsisoft Anti-Malware
  • Copy the a2hosts.dat file that you extracted from the file on your desktop into the Emsisoft Anti-Malware folder (you can right-click on the file to copy, and then when looking at the contents of the Emsisoft Anti-Malware folder you can click on Organize and select Paste).
  • Select to Copy and replace when it asks you about the existing file.
  • When Windows asks you to provide administrator permission to copy the file, click on Continue to finish copying the file.
  • Once the file has been copied, please try launching Emsisoft Anti-Malware from the icon on the desktop, and that will also start the protection.
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Please note that a fix for this issue has been released in a beta update, and you can enable beta updates in Emsisoft Anti-Malware to download and install the update. Here's how to do that:

  • Open Emsisoft Anti-Malware.
  • Go to Configuration in the menu on the left.
  • Go to the Update Settings tab.
  • Enable the Use beta updates option.
  • Run an update in Emsisoft Anti-Malware.
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