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SAP Note 857216 - SAP help files (.chm) not displayedcorrectly

Note Language: English Version: 10 Validity: Valid Since 04.03.2008

Summary

Symptom

You are working with the SAP system and would like to display adocumentation describing how to work with a particular program,transaction.

You use menu: Help ->

- Application Help

- SAP library

The browser is started and displays the screen with 2 frames. You canobserve following behavior:

o In left frame the structure is displayed, in right frame no contentis displayed. Instead of the content, the following error textappears:'Action canceled.Internet Explorer was unable to link to the Web page you requested.The page might be temporarily unavailable.'

You also could not display Microsoft Help files, which are notlocated on the same frontend.

o Links are not working in the content frame. If properties of thelink is displayed, the following can be seen:javascript:LINK81.Click()Protocol: Unknown ProtocolType: not available.

o

More Terms

Windows XP, WinXp, Windows 2000, Win2000, Windows 2003, Win2003, WindowsVista

Cause and Prerequisites

The SAP system is customized for the usage of help type 'HtmlHelpFile'(.chm files) in the transaction SR13 or via SAPDOCCD.INI file.The help files are not installed locally on the frontend, but on a networkshare.

You apply to your frontend / server (and / or):

o the Microsoft Security Bulletin MS05-001 "Vulnerability in HTMLHelp Could Allow Code Execution (890175)" - most of the computerswith Windows 2003 SP1 are affected

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SAP Note 857216 - SAP help files (.chm) not displayedcorrectly

o the Microsoft Security Bulletin MS04-023 "Vulnerability in HTMLHelp Could Allow Code Execution (840315)";

o the Microsoft Security Bulletin MS05-026 "Vulnerability in HTMLHelp Could Allow Remote Code Execution (896358)";

o or have Windows Vista

Solution

Since the problem is caused not by a SAP product, please follow the advisein the Knowledge Base articles from Microsoft referenced below. Theycontain certain registry changes, which have to be performed on everyfrontend / server, the Microsoft Security Bulletin should be applied.

1. 'How to do it' is described in the article 896054 of the Microsoftknowledge base:

http://support.microsoft.com/kb/896054You cannot use certain Web applications that use InfoTech protocolafter you install Windows Server 2003 Service Pack 1, MS05-026, orMS04-023

2. More information can be received from the following articles:

http://support.microsoft.com/kb/890175MS05-001: Vulnerability in HTML Help could allow code execution

http://support.microsoft.com/kb/892641HTML Help files do not work correctly after you uninstall securityupdate 890175 (MS05-001)

http://support.microsoft.com/kb/892675You cannot access HTML Help functionality on some Web sites afterinstalling security update MS05-001

http://support.microsoft.com/kb/840315MS04-023: Vulnerability in HTML Help could allow code execution

http://support.microsoft.com/kb/896905After you install security update 896358, content that should bedisplayed in a different frame is displayed in the frame thatcontains the HTML Help ActiveX control

http://support.microsoft.com/kb/896358MS05-026: A vulnerability in HTML Help could allow remote codeexecution

http://support.microsoft.com/kb/902225After you install security update 896358, downloaded Compiled HelpModule files cannot be opened

3. Required registry settings depend on your local infrastructure[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\ItssRestrictions][HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\HHRestrictions]"MaxAllowedZone"=dword:00000001

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SAP Note 857216 - SAP help files (.chm) not displayedcorrectly

Typically value 1 or 2 is entered in the "MaxAllowedZone"."UrlAllowList"=\\servername\share;file://\\servername\share;http://www.your_address.com/help_dir/"Actual required settings are determined by the location of .chm filesin the customer environment.

4. You will most likely also need to perform the actions (for example:"Unblocking" all CHM files) from the section "Resolution forend-users" of the article: http://support.microsoft.com/kb/902225

5. If you have problems with the solution offered by article 896054 fromMicrosoft, you should contact Microsoft Support.

Header Data

Release Status: Released for CustomerReleased on: 04.03.2008 17:49:27Master Language: EnglishPriority: Correction with high priorityCategory: External errorPrimary Component BC-DOC-IWB-DIS HTML Help

Secondary Components:BC-DOC-HLP F1-Help

The Note is release-independent

Related Notes

Number Short Text

637421 Error in SAP Library display following Q patch

596197 Full text search KW Documentation CDs

Attributes

Attribute Value

Security Security is endangered