This article was previously published under Q234543
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When you install Microsoft Internet Explorer 5 on a computer running Windows NT 4.0 Service Pack 3, new encryption files are installed. However, when you install Internet Explorer 5 on a computer running Windows NT 4.0 Service Pack 4, these encryption files are not updated, even though they are older files.
This issue occurs because of a file versioning problem. Even though the files are older, their version was higher and thus, they were not overwritten. This behavior has been corrected in Windows NT 4.0 Service Pack 5 (SP5) so that both Internet Explorer 5 and SP5 install the same version of these encryption files.
To resolve this problem, obtain the latest service pack for Windows NT 4.0. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
The latest service pack is also available at the following Internet location: