ID: Q185957
The information in this article applies to:
Microsoft has released Internet Explorer 4.01 Service Pack 1 (SP1) for Windows 95 and Windows NT 4.0.
Internet Explorer 4.01 SP1 (version 4.72.3110.8) is an update to Internet Explorer 4.0 and 4.01.
You can download Internet Explorer 4.01 SP1 from the following Microsoft Web site:
   http://www.microsoft.com/ie/download/ 
NOTE: The upgrade patch upgrades only Internet Explorer 4.01. If you are using an earlier version of Internet Explorer and attempt to install the patch, the full-download version of Internet Explorer 4.01 SP1 is installed instead.
You can download the upgrade patch of Internet Explorer 4.01 SP1 from the following Microsoft Web site:
   http://www.microsoft.com/ie/download/sp1.htm
NOTE: If you are currently running Internet Explorer 4.0 or 4.01, you can upgrade to Internet Explorer 4.01 SP1 using the Internet Explorer 4.0 Component Download Web page. To do so, click Product Updates on the Help menu in Internet Explorer.
To determine which version of Internet Explorer you are currently using, please see the following article in the Microsoft Knowledge Base:
   ARTICLE-ID: Q164539
   TITLE     : Determining Which Version of Internet Explorer You Are
               Using
   ARTICLE-ID: Q185959
   TITLE     : Description of Internet Explorer 4.01 Service Pack 1
Keywords          : kbenv kbpatch msiew95 msient ie4sp1 
Version           : WINDOWS:4.01
Platform          : WINDOWS
Issue type        : kbinfoLast Reviewed: March 18, 1999