>
>   We have this problem that is starting to drive me nuts.  We currently have an app that uses a PrinterSetupDialog
> component.  There is a menu option that simply calls the dialogs execute method.  I consistently get an AV when calling
> Execute.  I shouldn't say "I", because it not only happens on my development machine, but on three separate workstations
> (No Delphi installed) and another Delphi development machine (Clean install).  Each machine is configured pretty much
> the same.  All have printers assigned, with a default selected.  Each machine has the same version of ComDlg32.dll.  I
> stepped thru the VCL only to find it dumping on this line:
>
>   Result := TDialogFunc(DialogFunc)(DialogData);
>
> This happens 100% of the time.  I don't know which way to turn.  I have removed the control from the form, simply
>

Once I had stumbled on that one too. It may be too stupid to
suggest this, but do you have a valid printer installed? Sometimes I
got this error when I called PrinterSetupDialog with no printers
installed. I just check it using methods from printers unit and
perform a PrinterSetupDialog.Execute only if there is at least one
printer installed. Anyway that was how I handled it in the Delphi 1.0
days.....