Fix for steam.exe (main exception): unable to load library Steam.dll Error

May 24th, 2009 b0ddu Posted in Troubleshooting | 6 Comments »

After installing Steam on another computer and while launching it I got the error – steam.exe (main exception): unable to load library Steam.dll . steam.exe (main exception): unable to load library Steam.dll

I did some research and have uninstalled and tried installing again and again but still the same issue. Some forums even recommended that I need to copy files from disc onto Steam installed folder. I even made sure none of the Programs mentioned in Steam Support are interfering with the installation. I have changed my Bitdefender firewall to permit Steam exclusively, but it failed too.

Finally, I realized the application blocking Steam to connect to its network was Peer Guardian. From the task manager, I have closed ‘pg2.exe’ and I was able to run the Steam application properly. You can even see the Peer Guardian Logs and allow the connection to Steam servers.


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6 Responses to “Fix for steam.exe (main exception): unable to load library Steam.dll Error”

  1. magne andvik Says:
    May 31st, 2009 at 4:54 pm

    I can`t youse my cs… it will not sart!!

  2. Justin Says:
    June 3rd, 2009 at 12:23 pm

    Thanks for this mate. I forwarded all the ports, I set up all the firewalls, but I just didn’t check PeerGuardian! Disabled it whilst I installed Steam and it worked a treat!

  3. Ramon Says:
    June 11th, 2009 at 8:15 pm

    Hello, I do not have Peerguardian but I am still getting this error! someone please help me! my email is badboy_papu@hotmail.com PLEASE HELP

  4. Red Says:
    October 10th, 2009 at 5:25 pm

    I also dont have Peerguardian and i am getting this error to so yeah please email me if you can fix it. foxsunion@yahoo.com

  5. Element Says:
    October 15th, 2010 at 11:37 am

    I also dont have Peerguardian and i am getting this error to so yeah please email me if you can fix it. jtfick@mweb.co.za

  6. just me Says:
    March 22nd, 2011 at 7:00 pm

    i have no peer gaurdian so im assuming it will be my fire wall and or any security/virus protection i have on my laptop. also guessing peer gaurdian is a parental type lock. hope this helps others

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