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How To Change A Dll File Back To Normal

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Dll File error

JEANNE JONES asked on March 6, 2013. Status: Answered & Closed.

How To Change A Dll File Back To Normal

» I was playing around with my computer and i change a dll file to a notepad! I need help putting back to normal. I don't want to do system restore. I have windows 7.

Best Answer

» Basically when a program needs to use or the use of a dll it will use it regardless of what association it has assigned to it. DLLs don't usually get opened by themselves unless you're going to dissect it and look at its code and notepad would be one of the things you could use. Or wordpad or a hex editor etc. So leaving notepad, as DAVID says, won't have any effect one way or the other.

Since there really is no purpose to opening a .dll file, leaving set to Notepad, as has been mentioned, will cause no harm. However, if it really bugs you, you can probably get rid of that setting in the Registry. HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExt. Now find .dll in the list and click + and then click on the folder named OpenWithList. In the right pane remove Notepad.exe. Good idea to back up the registry key first (File|Export) in case something gets fouled up. FWIW--My registry shows the default for opening .dll files is iexplore.exe.

Or you can use DLL Suite to download a clean and safe version of that dll file, and replace it. DLL Suite contains a large update library of dll files, including .exe file and .sys files. It is able to fix any missing dll file error, or exe virus infection or BSOD(caused by viruses like Backdoor:Win32/Tapazom.A).

DARRELL FLEMING replied on March 12, 2013

All Answers:

  1. LINDA NORONHA replied on March 6, 2013: » If you are have changed file association settings to open a 'dll' with notepad the try the following steps to revert back the changes.
    You can try the following steps and check the status,

    a) Click on start.
    b) Type 'regedit' in the search textbox and click enter to open registry editor window
    c) Navigate to the following location: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExt.
    d) Expand the 'OpenWithList' and to the right double click to open the file 'a' and remove 'Notepad' and click on 'OK'.
    e) Now delete the 'UserChoice' folder under '.dll'.
    f) Close the registry editor windows and restart the computer for the changes to take effect.

    Important: This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.

  2. DAVID GARCIA replied on March 6, 2013: » All you did was tell the computer that if you are going to open a .dll that you want to open it in notepad. The computer will still interact with them normally, so there shouldn't be any problems.

  3. JEANNE JONES replied on March 8, 2013: » I just was trying to open the dll file then i click on open with then i chose notepad how can i change it back to defult ?

  4. DAVID GARCIA replied on March 9, 2013: » As I said in my previous reply, doing that doesn't cause any harm to the computer. The files all still have the .dll file extension and function the exact same as before you selected notepad.

    All you did was tell the computer if you, the user, try to open any .dll file, then the computer should attempt to open the file in notepad. Programs using the .dll files just see them as .dll files, they don't try to open them in notepad, they open them the way they are supposed to.

  5. DANIEL SIMS replied on March 11, 2013: » Just run a system restore to a time before you messed up, you could reinstall the application to which the DLL belongs for repair the problem...

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