Server.HTMLEncode Garbles Extended Characters (184891)
The information in this article applies to:
- Microsoft Windows NT Server 4.0 Terminal Server Edition
- Microsoft Internet Information Server 4.0
This article was previously published under Q184891 We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site: SYMPTOMS
ASP script using Server.HTMLEncode produces garbled extended characters in
single-byte character set (SBCS) code pages other than code page 1252
(U.S. ANSI).
This affects Eastern European languages, such as Czechoslovakian, Russian,
and Hungarian.
CAUSE
This problem may occur due to both of the following causes:
- HTMLEncode incorrectly writes numeric character entities using
SBCS codepoint values instead of the Unicode values. In HTML, &#xxx;
entities represent Unicode values, not SBCS codepoints. When HTMLEncode
determines that a numeric entity must be written, it must simply write
the raw Unicode value in decimal, not the local code page equivalent.
-and-
- HTMLEncode uses the wrong logic in determining when to write out a
numeric character entity versus simply inserting the raw character. It
appears to do the opposite of what is expected; it writes the incorrect
character entities for characters that can be represented in
Session.Codepage, and writes the nearest precomposed equivalent for
other characters.
Instead, it should write the raw SBCS character for characters that can be
represented in Session.Codepage, and the Unicode numeric character entity
for characters that cannot.
RESOLUTIONTo resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 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
STATUS
Microsoft has confirmed this to be a problem in Internet Information
Server version 4.0.
This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
| Modification Type: | Minor | Last Reviewed: | 9/22/2005 |
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| Keywords: | kbHotfixServer kbQFE kbbug kbfix kbWinNT400sp4fix KB184891 |
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