Оформил: DeeCo
Автор: http://www.swissdelphicenter.ch

function KillDll(aDllName: string): Boolean;
 var
   hDLL: THandle;
   aName: array[0..10] of char;
   FoundDLL: Boolean;
 begin
   StrPCopy(aName, aDllName);
   FoundDLL := False;
   repeat
     hDLL := GetModuleHandle(aName);
     if hDLL = 0 then
       Break;
     FoundDLL := True;
     FreeLibrary(hDLL);
   until False;
   if FoundDLL then
     MessageDlg('Success!', mtInformation, [mbOK], 0)
   else
     MessageDlg('DLL not found!', mtInformation, [mbOK], 0);
 end;