How to configure Inno Setup to uninstall everything?

Question

I am new to Inno Setup. Stuck on one issue ~ how to configure the uninstall piece to remove all files, folders, subfolders, and even new files/folders etc. created by applic

Answer 1

You should probably have made this a totally new question, but I'll answer your updated question here as well. Have a look at the section "Pascal Scripting: Uninstall Code" in the Inno Setup Documentation.

To give an example how to conditionally delete data files as part of the uninstallation process:

[Code]

procedure DeleteBitmaps(ADirName: string);
var
  FindRec: TFindRec;
begin
  if FindFirst(ADirName + '\*.*', FindRec) then begin
    try
      repeat
        if FindRec.Attributes and FILE_ATTRIBUTE_DIRECTORY <> 0 then begin
          if (FindRec.Name <> '.') and (FindRec.Name <> '..') then begin
            DeleteBitmaps(ADirName + '\' + FindRec.Name);
            RemoveDir(ADirName + '\' + FindRec.Name);
          end;
        end else if Pos('.bmp', AnsiLowerCase(FindRec.Name)) > 0 then
          DeleteFile(ADirName + '\' + FindRec.Name);
      until not FindNext(FindRec);
    finally
      FindClose(FindRec);
    end;
  end;
end;

procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
begin
  if CurUninstallStep = usUninstall then begin
    if MsgBox('Do you want to delete all data files?', mbConfirmation,
        MB_YESNO) = IDYES 
    then begin
      DeleteBitmaps(ExpandConstant('{app}'));
    end;
  end;
end;

But depending on the amount of stuff you need to clean up you might be better off to create a special helper program that is part of the installation, and which can be executed during the uninstallation of the app (using an entry in the [UninstallRun] section).