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HTML Help Viewer Does Not Show the Content Of Chm file (Right pane is white blank) RRS feed

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    Hello,

    My System:

    Windows 7 Ultimate SP1 x64

    Problem Statement:

    The Windows Help Viewer (HelpPane.exe and hh.exe) do not show the content of the chm files. This problem occurs when 

    opening a chm file, starting the Windows "Help and Support" or launching the help from local programs (e.g. Eclipse, Visual studio, etc).

    The following image depicts the problem, the left pane shows the TOC and all the control buttons are functioning all right but the right pane where the text must be rendered is white blank. 

    Actions Taken:

    - sfc /scannow  did not report any relevant error.

    - procmon did not show any error

    - The hhctrl.ocx itss.dll and itircl.dll were manually registered but this did nor resolve the problem.

    - The solution stated in  http://social.technet.microsoft.com/Forums/en-US/w7itprogeneral/thread/dc805621-eb4e-42c5-ae6c-456946e6871a/ does not apply to my case since the registry entry in my computer is correct.

    - Upgrade Repair install stuck at the middle and failed. 

    - H3Viewer installed but it also did not show the content.

    - Visual studio 2012 Help Viewer 2.0 behaves the same as well. 

    - MJsDiag.exe was run on two identical systems (Win 7 x64): the results are identical except the following lines:

    The DLL files were manually registered but the problem still persist.

    HTML Help Run-time Components

    File Register ** Failed **: C:\Windows\system32\hhctrl.ocx (Version: 6.1.7600.16385)
File Register ** Failed **: C:\Windows\system32\itss.dll (Version: 6.1.7600.16385)
File Register ** Failed **: C:\Windows\system32\itircl.dll (Version: 6.1.7601.17514)

File Found: C:\Windows\system32\hhctrl.ocx
	Version = 6.1.7600.16385
	Registry Info: {adb880a6-d8ff-11cf-9377-00aa003b7a11}
	  ClassName = HHCtrl Object
	  InProcServer32 = C:\Windows\System32\hhctrl.ocx
	  ProgID = Internet.HHCtrl.1
	DLL is Found and Registered OK = YES

File Found: C:\Windows\system32\itss.dll
	Version = 6.1.7600.16385
	Registry Info: {5D02926A-212E-11D0-9DF9-00A0C922E6EC}
	  ClassName = Microsoft InfoTech IStorage System
	  InProcServer32 = C:\Windows\System32\itss.dll
	  ProgID = MSITFS1.0
	DLL is Found and Registered OK = YES

File Found: C:\Windows\system32\itircl.dll
	Version = 6.1.7601.17514
	Registry Info: {4662DAA5-D393-11D0-9A56-00C04FB68BF7}
	  ClassName = 
	  InProcServer32 = C:\Windows\System32\itircl.dll
	  ProgID = ITIR.WordWheelBuild.4
	DLL is Found and Registered OK = YES

    -Uninstalling the Visual Studio 2012 and other programs did not solve the problem either. 

    I will appreciate if anybody can help me to solve this problem. 

    Thank you

    Thursday, May 16, 2013 9:29 PM

Answers

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    Hi,

    Have you tried to RightMouseClick --> Properties --> and click Unblock on the .chm file?

    I would provide a screenshot but my account has still to be verified...


    Friday, April 25, 2014 9:46 PM

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    I have exactly the same problem with the same system and could't find any help by now.

    Additional remark: With help control 6.1 in WISO boerse 2013 the right window shows instead the source text. With an older software, Fritz!fax 3.07.61, as well with help control 6.1, works without problem.

    HELP!! Tahnk you!

    Wednesday, June 19, 2013 1:41 PM
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    The Windows "Help and Support" should be on local drives. In this case I have no hints.

    But following could help if the CHM file is located in LAN. I had blank help pages under Win Server 2012 and this worked for me.

    REGEDIT4

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\HHRestrictions]
"MaxAllowedZone"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\ItssRestrictions]
"MaxAllowedZone"=dword:00000001

    See also KB896054 and KB917607.

    Wednesday, June 26, 2013 3:36 PM
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    My environment:
    B1 9.0 PL06 (9.00.058)
    Windows Server 2012 Std
    SQL Server 2012 Std

    Had the exact same issue, and the following fixed it for me:

    1. Added the following reg keys:
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\ItssRestrictions]
    "UrlAllowList"="\\\\servername\\b1_shr\\;file://\\\\ servername\\b1_shr"
    "MaxAllowedZone"=dword:00000001

    2. Added permissions to the B1_SHR (Everyone:Read)

    3. Changed Help Settings (Help menu, Documentation, Help Settings) and selected English (United States) and Shared Folder.
    Monday, September 23, 2013 3:34 PM
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    Hi,

    Have you tried to RightMouseClick --> Properties --> and click Unblock on the .chm file?

    I would provide a screenshot but my account has still to be verified...


    Friday, April 25, 2014 9:46 PM
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    thanks brooooo..........:)))
    Thursday, October 30, 2014 5:51 AM
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    The Windows "Help and Support" should be on local drives. In this case I have no hints.

    But following could help if the CHM file is located in LAN. I had blank help pages under Win Server 2012 and this worked for me.

    REGEDIT4

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\HHRestrictions]
"MaxAllowedZone"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\ItssRestrictions]
"MaxAllowedZone"=dword:00000001

    See also KB896054 and KB917607.

    the ITSS restrictions to 1 fixed it for me, cheers

    http://support.microsoft.com/kb/896054/en-us

    Sunday, February 22, 2015 11:34 PM
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    thank you soo much .. .worked 
    Saturday, September 16, 2017 9:49 AM
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    This option may be solved more simply now in later versions of Windows 10

    Find the .chm file location, right click, general tab, towards bottom: security, check unblock

      (apply/OK)

    The file should display properly now


    • Proposed as answer by cpufox_live Saturday, December 29, 2018 10:47 PM
    Saturday, December 29, 2018 10:47 PM
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    None of these worked for me, except finally reinstalling Internet explorer

    Friday, May 10, 2019 10:18 PM