This article was previously published under Q239864
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This article contains a list of the bugs fixes included in Microsoft Internet Authentication Service (IAS) Service Pack 6 (SP6) rollup fix.
You need to install Windows NT 4.0 Service Pack 4 or later before you install the SP6 rollup fix for IAS. To resolve this problem, obtain the latest service pack for Windows NT 4.0 and Microsoft Windows NT 4.0 Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
The SP6 rollup fix for IAS supersedes all earlier fixes available for IAS. After you install the rollup fix, you do not need to install the earlier individual IAS fixes.
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Windows NT 4.0 service pack that contains this fix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English language version of this fix should have the following file attributes or later: