You've to distribute comdlg32.ocx with your application to make sure that it works.

>Thanks Sergery. Let me ask one final question... as I'm not sure just how pervasively available is MSComDlg.CommonDialog.
>
>What if I try to open a form with the MSComDlg.CommonDialog control on it, but the machine does not have the control installed. Is that even possible (and still the system be functional?).
>
>I have tried this, and it seems to work:

>&& Here, G_CanUseCommonDlg is a public var that starts out at zero.
>&& It gets set once in the app as a flag
>&& to indicate that MSComDlg.CommonDialog is available:
>IF EMPTY(G_CanUseCommonDlg)
>  G_CanUseCommonDlg=1
>  LOCAL oOleComDlg
>  TRY
>    oOleComDlg=CREATEOBJECT("MSComDlg.CommonDialog.1")
>  CATCH
>    G_CanUseCommonDlg=2
>  ENDTRY
>  oOleComDlg=.null.
>ENDIF

>By doing this, I know if G_CanUseCommonDlg equals 1, that MSComDlg.CommonDialog.1 is available and my app won't throw an error when I open the form upon which the Control is placed. By the way, I set the form's LEFT property to -500 in the Init so the form itself is not visible. Then in its Activate event, I do the code to set up the OleControl and invoke its ShowOpen() method. This seems to work OK.
>If G_CanUseCommonDlg equals 2, then I just default to VFP's GetFile() function.
>
>What I don't know is if GetFile() uses MSComDlg.CommonDialog anyway, so that all this checking I'm doing is not necessary.