Wrong default program to open .dll file

[Sitesh]

Hello,

By mistake, I tried to open a .dll File after clicking "change program" then Acrobat Reader, without checking the box "always use this program ...". All .Dll files now have the Acrobat icon, but i want the previous default one but I'd like to correct this wrong manipulation, How can i do?

Thank you for your help.

[Neel23]

Well you can do the same thing which you did with acrobat reader but this time choose the notepad instead of acrobat reader, set notepad to default, except set a different program. This should bring the previous icon back to .dll files. Try it out, good luck.

[Dwight]

There is simple procedure to do it:

• Right Click on any .Dll file .
• Select Open With,
• Then Select Program.
• Select your favorite image viewer program. Check the "always use selected program" box and Click OK.

[Nigel_123]

Good evening,

Warning: Changing the registry can cause serious problems that may go to the inability to start Windows, better is to backup registry first.

• Start-> run-> type regedit-> Ok
  
• Navigate to the HKEY_CLASSES_ROOT\dllfile\DefaultIcon
  
• Double click the value (default) and copy and paste this in data Value":
  
• %SystemRoot%\System32\shell32.dll,-154
  
• Click Ok and then restart the PC.