Avast WEBforum
Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: Warwagon19792 on January 05, 2011, 11:00:34 PM
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As of recent I have been getting the error message
C:\program files\Alwil Software\Avast5\AvastUI.exe
"The Application has failed to start because its side-by-side configuration is incorrect. Please see the application event log for more detail."
After installing avast on Clean installation of Windows.
After the reboot, if I uninstall avast and then reboot again and then reinstall avast it will install and work just fine. This has been annoying me. So far it's like 2 out of every 5 avast installations actually install without getting this error.
If I were to install Avast while windows was pending a reboot from recently installed updates, would that cause this message?
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Have you tried latest version http://forum.avast.com/index.php?topic=68927.0
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http://forum.avast.com/index.php?topic=54757.0
(http://forum.avast.com/index.php?topic=54757.0)
This topic has a solution, which immediately worked for me when I had this issue only a few moments ago.
The solution is to install Windows C++ 2008 Redistributable (for 32-bit computers the code is x86).
The link in that topic has the 32-bit C++ 2008 installation.
What my question regarding this is, why couldn't Avast use my C++ 2010 Redistributable library?
I was very confused this morning when I woke up and saw Avast! was not running.
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My guess - There are many such anomalies, if avast is using the C++ 2008 libraries, etc. then it won't be looking for later versions in a different location.
This happens with some programs using .net they are looking for the version they were built to run under. I had a problem that needs .net 3.5 and I though I was being clever when I installed .net 4.0 thinking it would be backwards compatible, my error it wasn't.