FogBugz is a web application that runs within IIS under its own Windows user account. When you run FogBugz Setup, you are prompted to either let Setup create a new account dedicated to this purpose, or use an existing account. By default, the account that Setup will create is named FogBugz, so we’ll call this “the FogBugz account” even if you happen to give it another name.

Note: To determine what user account FogBugz was set up with, see this knowledge base article.

Setup grants the FogBugz account the permissions it needs to accomplish its tasks. For example, Setup gives FogBugz permission to read and write the appropriate files in the file system and to read and write the registry entries which FogBugz uses to save its configuration settings.

A bug in IIS version 5.1 or 6.0 (on Windows XP or Windows Server 2003) can incorrectly cause FogBugz to switch to the IWAM_machinename account after a period of time. This bug manifests itself through problems uploading files or changing site settings. To work around this problem, follow the instructions in this knowledge base article to insure that FogBugz is always running under the FogBugz account.

Note: starting with FogBugz 4.0 and later, the workaround is already built into Setup. However, if you have FogBugz 3.0 running under Windows XP or Windows Server 2003, you should follow these instructions to work around the IIS bug and keep FogBugz running under the FogBugz account.

FogBugz can’t currently run on a domain controller. Please contact us for more information.

FogBugz Maintenance Service

You can check the FogBugz user and password for the Maintenance Service by opening the Services Control Panel.

  1. Choose Start->Settings->Control Panel->Administrative Tools->Services.
  2. Scroll down to the FogBugz Maintenance Service.
  3. Right click on it and choose properties.
  4. Switch to the Log On tab and make sure “This account” is selected and the FogBugz username and passwords are correct.
  5. Hit OK.

Don’t hesitate to contact us with any questions or concerns you might have.