Changing the directory of Delphi OpenDialog + Drive in Win7 - delphi

Question

It seems that on Win7 changing the TOpenDialog.InitialDir doesn't work, when the new directory is on a different drive, than the current directory.
e.g.: I want to change my InitialDir from 'C:\program files\MyApp' to 'D:\test\MyAppData'
Is that a known issue, or only on my computer?
I already tried the same thing, as mentioned in the following post, but without any success:
Changing the directory of Delphi OpenDialog
EDIT:
I am using DelphiXE on Win7 32 Bit
The path/dir is correct: So, when I copy that path from code and past it into the 'File Name' field of that Dialog itself and I press ENTER, then the Dialog switches to that directory. Only, in my code it is not working.
UPDATE:
I found the problem. If the path contains some path commands like ..\ the TOpenDialog.InitialDir is not able to resolve that. Use TPath.GetFullPath(...) to make it clean.

Answer 1

I have tested on a Delphi XE, it runs fine... I have done this:
Put a new form:
object Form4: TForm4
Left = 0
Top = 0
Caption = 'Form4'
ClientHeight = 204
ClientWidth = 447
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
OldCreateOrder = False
PixelsPerInch = 96
TextHeight = 13
object Button1: TButton
Left = 24
Top = 40
Width = 75
Height = 25
Caption = 'Button1'
TabOrder = 0
OnClick = Button1Click
end
object Edit1: TEdit
Left = 120
Top = 42
Width = 121
Height = 21
TabOrder = 1
Text = 'D:\'
end
object OpenDialog1: TOpenDialog
InitialDir = 'C:\'
Left = 120
Top = 72
end
end
And its source code:
unit Unit4;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm4 = class(TForm)
OpenDialog1: TOpenDialog;
Button1: TButton;
Edit1: TEdit;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form4: TForm4;
implementation
{$R *.dfm}
procedure TForm4.Button1Click(Sender: TObject);
begin
OpenDialog1.InitialDir := edit1.text;
OpenDialog1.Execute;
end;
end.
Regards

Answer 2

I don't have any problem changing InitialDir, either through object inspector or runtime (Win7 with Delphi 2010). Try doublechecking if the directory you try to change to is correctly typed.