Latest questions about "file missing"

My laptop reports that the file "implode.dll" is missing. What can I do to download this file on my computer?

I have a shortcut for Windows XP but it works in my Vista on my home computer. When I tried to back it up and put it on another computer it says I'm missing an scl file.

If I open any application, it says: "The document "hypercard.zip" could not be opened, because the application program that created it could not be found.