Steam Support Wiki
 
 

Using a Firewall with Steam (Unable to load library Steam.dll)

 
 

Article ID: 2198-AGHC-7226 FAQ ID: 234

The content of this page is moderated by both Steam Support and the Steam user community - any links to outside sites should be treated with caution.

Steam Support will not request your Steam account password for any reason, nor will you ever be asked to enter your Steam account password into a website form.

Important Note

If you are installing Steam for the first time - or if there has been a recent Steam update - a firewall may be preventing Steam from connecting to the Steam Network.

Please remember to update your firewall permission settings for Steam with every Steam update and for Steam games every time a game update is released. Steam updates and game updates are announced on the Steam News page.


  1. Close the Steam client application and remove all instances of the following executables from your firewall's permissions list:
    • steaminstall.exe
    • steam.exe
    • hl.exe
    • hl2.exe
    • steamTmp.exe
      Permissions for these executables will need to be re-learned by your firewall.
  2. Open Steam to allow your firewall to re-learn permissions for the Steam executables. If your firewall does not prompt you to set new permissions, the security settings may be too strict - you will need to change these settings so you will be prompted to set permissions.
    Give the Steam executables permission for all TCP and UDP ports when prompted.
  3. Restart your computer and load Steam.
  4. If the issue persists, please see the Troubleshooting Network Connectivity topic for further troubleshooting recommendations.

Firewall Provider Resources

If you are using a firewall program listed above and have questions about setting permissions, please take the opportunity to open the program and use its Help feature or review the support site for the software:

  • Microsoft provides support for the Windows XP firewall (included with Windows XP Service Pack 2, enabled by default)
  • Norton provides support for Norton Personal Firewall
  • McAfee provides support for McAfee Personal Firewall and the McAfee Internet Security Suite
  • Zone Labs provides support for ZoneAlarm
  • nVidia - nVidia's Network Access Manager is bundled with some nVidia products. Unfortunately, this product is not compatible with Steam - please see the Nothing appears on the Storefront screen in Steam topic for more information.

If allowing permissions does not seem to affect the connection to Steam, please try disabling your firewall completely before launching Steam to test this issue.


 
 
  link: Valve Software MediaWiki Logo