Try this. First, open Notepad. Copy and Paste the following, not including
the dashes, into Notepad:
---------------------------dashes-----------------------------
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\.dll]
@="dllfile"
"Content Type"="application/x-msdownload"
[HKEY_CLASSES_ROOT\.dll\PersistentHandler]
@="{098f2470-bae0-11cd-b579-08002b30bfeb}"
---------------------------dashes-----------------------------
Save the file as dll.reg (no .txt extension).
In the Registry Editor, go to this key:
HKEY_CLASSES_ROOT\.dll
In the LEFT-hand pane of Registry Editor, right-click the key ".dll" (it
won't have quotes) and choose Delete.
Then go to this key (it may not exist):
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.dll\UserChoice
In the LEFT-hand pane of Registry Editor, right-click the key "UserChoice"
(only!) (it won't have quotes) and choose Delete.
You can close Registry Editor. Double-click on
dll.reg, and allow the Merge. Log Off, and then back On.
Just a thought, but it might be better if you put Notepad in your SendTo
folder, and read a .dll that way. Sending it to Notepad won't change the
association.
"avp144" <avp144@discussions.microsoft.com> wrote in message
news:EBA0CD8B-1E1E-4C38-A85B-2B8C2F1D6889@microsoft.com...
> how to undo "open with" action if you let checked "always use the selected
> program to open this kind of file" by mistake?
> I was trying to read a dll file with notepad !? but now I can't go back...
> Thanks