Must Start Internet Explorer Twice for Automatic Configuration (296768)

Microsoft Internet Explorer 5.5 for Windows NT 4.0 SP 1

Microsoft Internet Explorer 5.01 for Windows NT 4.0 SP 1

Microsoft Internet Explorer 5.01 for Windows NT 4.0 SP 2

Microsoft Internet Explorer 5.0 for Windows NT 4.0

Microsoft Internet Explorer 5.5 for Windows Millennium Edition SP 1

Microsoft Internet Explorer 5.5 for Windows 98 SP 1

Microsoft Internet Explorer 5.01 for Windows 98 SP 1

Microsoft Internet Explorer 5.01 for Windows 98 SP 2

Microsoft Internet Explorer 5.0 for Windows 98

Microsoft Internet Explorer 5.5 for Windows 95 SP 1

Microsoft Internet Explorer 5.01 for Windows 95 SP 1

Microsoft Internet Explorer 5.01 for Windows 95 SP 2

Microsoft Internet Explorer 5.0 for Windows 95

Microsoft Internet Explorer 5.5 for Windows 2000 SP 1

Microsoft Internet Explorer 5.01 for Windows 2000 SP 1

Microsoft Internet Explorer 5.01 for Windows 2000 SP 2

Microsoft Internet Explorer 5.0 for Windows 2000

This article was previously published under Q296768

SYMPTOMS

When Internet Explorer uses automatic configuration, it may not automatically configure your proxy settings the first time you start it. Instead, you may have to start Internet Explorer twice to cause the proxy configuration to occur.

WORKAROUND

To work around this problem, use an autoproxy .pac file instead of static proxy information in your automatic configuration .ins file.

The following is an example of a .pac file:

FindProxyForURL(url, host)
  {
      if (url.substring(0, 5) == "http:") {
        return "PROXY proxy:80";
      }
      else if (url.substring(0, 4) == "ftp:") {
        return "PROXY fproxy:80";
      }
      else if (url.substring(0, 7) == "gopher:") {
        return "PROXY gproxy";
      }
      else if (url.substring(0, 6) == "https:") {
        return "PROXY secproxy:8080";
      }
      else {
        return "DIRECT";
      }
  }

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Modification Type:

Major

Last Reviewed:

11/26/2003

Keywords:

kbprb KB296768