Windows Tit-Bits


  • Symptom
    • When using Control Panel to Add/Remove programs the following error is produced:
           Error: An unexpected error occurred. Class not
           registered. res://appwiz.cpl/ Line: 225
  • Cause
    • The windows registry has become corrupted by an erroneous uninstall routine.
  • Fix
    • Take the following action:
      • Run sfc /purgecache
      • Run sfc /scannow
      • Download and install MDAC 2.8 from


  • Symptom
    • When right-clicking a file and choosing the Open With command, or clicking the Choose Program… sub-menu, one of the following may occur, and the Choose The Program dialog box is not displayed.
    • Notepad may launch automatically - i.e. the selected file opens with notepad.exe.
    • Access Is Denied error message is displayed.
  • Cause
    • The OpenAs registry key has become corrupted.
  • Fix
    • To fix the problem manually, follow these steps:
      • Run regedit.exe.
      • Navigate to the HKEY_CLASSES_ROOT\Unknown\shell\openas.
      • Set command to be rundll32.exe shell32.dll,OpenAs_RunDLL %1.
      • Close regedit.exe.


  • Run regedit.exe.
  • Navigate to the HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer.
  • Rename or delete the original ActiveX Compatibility key.
  • Create a new, empty ActiveX Compatibility key.
  • Close regedit.exe.
  • Restart browser.

HOW TO FIX Can't Create File In Outlook ERROR MESSAGE

  • Symptom
    • When trying to open attachment in Outlook, following message is received:
      • Can't Create file: <file name>. Right-Click the folder you want to create the file in, and then click properties on the shortcut menu to check your permissions for the folder
  • Cause
    • Outlook saves every single attachment downloaded to a temp folder. If the same file name exists, it simply appends a number. The numbering system cannot handle 3-digits, therefore after 99 the above error message is generated.
  • Workaround
    • Locate the temp directory and purge any un-required attachments.

HOW TO FIX Could Not Access The Local Server ERROR MESSAGE

  • Symptom
    • When trying to log on locally with a non-administrator account, the following message is received:
      • Could not access the local server
    • No events regarding these logon attempts not working may be recorded in the Security Log, although the other networking functions of the server operate normally.
  • Cause
    • This issue can occur if !McAfee Net Shield version 4.0.3a is installed on the computer.
  • Workaround
    • Use *msconfig* to remove the offending entry from the startup tab.
    • The most likely entry is "c:\Program Files\Network Associates\VirusScan\SHSTAT.EXE" /STANDALONE
    • If running on Windows 2000, the msconfig will not be present, therefore download one from here.


  • Symptom
    • An e-mail contains an embedded animated gif that needs to copied to the hard drive.
    • The View Source shows an entry similar to:
      • <img src="cid:053D6ABA.86C4FB10|fig.100egami#053D6ABA.86C4FB10|fig.100egami>
  • Action
    • Using Outlook, make sure MS Word is the default mail editor.
      • Tools - Options - Mail Format - checkbox under Message Format section
    • Reply or Forward to the email to get it opened in MS Word.
      • Only a Reply or Forward will get the embedded image properly selectable.
    • Click on the image once to select it. The image will no longer appear animated, but that's ok.
    • Drag and drop the image on to the desktop, or right-drag and drop on the desktop and choose Create Active Desktop Images Here.
    • When told a gif image will need to be created in order to place the active desktop image, agree and place the image on to the desktop, or alternative location.
    • The gif can now be renamed, and moved to wherever it is needed.


  • Configure HKEY_USERS/DEFAULT/Control Panel/<nop>PowerCfg/CurrentPowerPolicy to be 0.
  • The Power Scheme Options:
    • 0 : Home/Office Desk
    • 1 : Portable/Laptop
    • 2 : Presentation
    • 3 : Always On
    • 4 : Minimal Power Management
    • 5 : Max Battery


  • Symptom
    • When shutting down Windows the following dialogue box appears:
      • ShellconHiddenWindow End Now?
  • Cause
    • This issue can occur if Musicmatch Jukebox software is installed on the computer.
  • Workaround
    • Use msconfig to remove the mimboot.exe entry from the startup tab.
    • If running on Windows 2000, the msconfig will not be present, therefore download one from here.


To comply with current Internet standards (Request for Comments 2068), Internet Explorer limits the number of simultaneous downloads to two downloads, plus one queued download. This configuration is a function of the browser. However, as connection speeds increase, and the number of total connections that are allowed to Internet servers increase, the two-connection limit may be restrictive. To increase the number of simultaneous connections that are allowed to 10, follow these steps:

  • Start Registry Editor ( Regedit.exe ).
  • Locate the following key in the registry:
    • HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings
  • On the Edit menu, point to New click DWORD Value, and then add the following registry values:
    • Value name : MaxConnectionsPer1_0Server
    • Value data : 10
    • Base : Decimal
    • Value Name : MaxConnectionsPerServer
    • Value data : 10
    • Base : Decimal
  • Quit Registry Editor.

This procedure is for informational purposes only. Changing the maximum number of connections beyond two is a violation of Internet standards; Microsoft does not recommend this procedure for use outside closed networks.


  • Open one image with Windows Picture and Fax Viewer.
  • Left click the print button.
  • With the Print Wizard on screen…go back to your image folder and open another image.
  • Close the Print Wizard…and there will be two instances of Windows Picture And Fax Viewer open.


  • Use the Print Screen key alone to obtain a capture of the whole screen.
  • Use the Alt + Print Screen keys to obtain a capture of the active window only.


If a site has suppressed the screen saver options from the desktop, then access to the options can be re-enabled by using the following instructions:

  • Start Registry Editor ( Regedit.exe ).
  • Delete the following key in the registry:
    • HKCU\Software\Policies\Microsoft\Windows\Control Panel\Desktop\SCREENSAVE
  • Quit Registry Editor.


  • With the exception of one IE window, close down all other IE browser windows.
  • Right click on a link and select Open in New Window
  • Close down the original window.
  • Using the drag handles on the side, or corner of the newly opened window, resize the window to the preferred size.
  • Close the window down using the X in the corner of the window whilst holding down the Ctrl button.
  • On-restarting the application, the window will be sized to most recent setting.


  • Ensure hidden and system files and directories are visible.
  • Navigate to %SYSTEMROOT%\inf. e.g. c:\wimdows\inf
  • Use notepad.exe to edit sysoc.inf.
  • Reveal required hidden windows components by removing the word hide - note, leave the commas in place.
  • Use Add/Remove Windows Components to remove or configure as required.


To create a spreadsheet available to multiple users and likely to require concurrent access, e.g. a holiday sheet, use the Share Workbook option off the Tools menu to avoid having to endure the "Workbook locked by User X" message.

With this option set, Excel will journalise all updates and ensure they are played against the file. Fine tuning of conflict resolution settings can be made using the Advanced tab.

STOP AND RESTART explorer.exe

  • taskkill /f /im explorer.exe
  • explorer.exe - From the task manager > New Task window


To suppress the displaying of the previous user to login and use the computer, follow these steps:

  • Start Registry Editor ( Regedit.exe ).
  • Locate the following key in the registry:
    • HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System
  • On the Edit menu, point to New click DWORD Value, and then add the following registry values:
    • Value name : DontDisplayLastUserName
    • Value data : 1
    • Base : Hexadecimal
  • Quit Registry Editor.


  • Error Message
    • This page contains both secure and nonsecure items
  • Fix
    • In the web browser go to Tools.
    • Select Internet Options from the drop down menu.
    • Click on the Security tab.
    • Click on the Internet Zone.
    • Click Custom level.
    • Scroll down to find the heading Miscellaneous.
    • Find the sub-heading Display Mixed Content.
    • Click Enable.
    • Click OK.
    • In response to Are you sure you want to change the security settings for this zone? click Yes.


If Windows Updates fails due to corrupted or missing dll files, try the following options:

  • Run regsvr32 MSXML3.DLL

If that fails, there may be further un-registered dll's, try:

         net stop wuauserv 

         regsvr32 wuapi.dll 
         regsvr32 wups.dll 
         regsvr32 wuaueng.dll 
         regsvr32 wuaueng1.dll 
         regsvr32 wucltui.dll 
         regsvr32 wuweb.dll 
         regsvr32 MSXML3.dll 
         regsvr32 qmgr.dll 
         regsvr32 qmgrprxy.dll 
         regsvr32 jscript.dll 

         net start wuauserv
  • File %SYSTEMROOT%\SoftwareDistribution\DataStore\Logs\edb.log inaccessible.
    • Use Services to stop Automatic Update.
    • Remove file %SYSTEMROOT%\SoftwareDistribution\DataStore\Logs\edb.log.
    • Use Services to start Automatic Update.
    • Re-run Windows Update.


  • Symptom
    • When trying to install an Office 2003 Service Pack an error message is recieved - e.g. 0x80070643.
  • Cause
    • This issue may occur because the Windows Registry is corrupted and a registry key that provides the path of the original installation source for Office 2003 program is missing. Or, some third-party programs that modify the Windows Registry removed the registry keys that are required by the Office 2003 Setup program.
  • Resolution
    • Re-create the path of the original installation source in the registry with the following steps:
      1. Click Start, click Run, type regedit, and then click OK.
      2. Locate and then click to select the following key:
        • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Delivery\SourceEngine\Downloads\download_code
        • The download_code subkey is a series of numbers and letters in a format that may look similar to the following:
        • 90000409-6000-11D3-8CFE-0150048383C9
        • Note There may be multiple download code subkeys that have a similar format of numbers and letters separated by dashes.
      3. With the download code subkey selected, click to select the Sources subkey.
        • In the Sources subkey, you will find the product code GUID values for your Office 2003 product that you previously identified.
        • Note There may be multiple product code GUID values.
      4. With the product code GUID value for your Office 2003 product selected, point to New on the Edit menu, and then click String Value.
      5. Type Path, and then press ENTER.
      6. With Path selected, click Modify on the Edit menu.
      7. In the Value data text box, type the full path of the original installation source for your Office 2003 program, and then click OK.
        • For example, type D:\ if the CDROM drive used for installation is the D: drive.
      8. Repeat steps 4 through 8 for each product code GUID value that corresponds to an Office 2003 product that is installed on your computer.
      9. Repeat steps 3 through 9 for each download code subkey if you determined in step 3 that you have multiple download code subkeys.
      10. When you have completed all steps, click Exit on the File menu.
© copyright 2001-2014 | all rights reserved