Konstantin_d AIZ1. См. HELP File Functions
Смотрел. Нету.
А это что:
GetFolder PowerScript function
Description

Displays a folder selection dialog box.

Syntax

GetFolder ( title, directory )

Argument Description
title String for a title that displays above a list box containing a tree view for folder selection.
directory String for the directory name passed by reference to the folder selection dialog box. The directory name is selected, and its subfolders, if any, are displayed in a dialog box tree view.
Return value

Integer. Returns 1 if the function succeeds, 0 if the user selects cancel (or the dialog box is closed), -1 if an error occurs.

Usage

The directory selected by the user is returned in the same variable that is passed to the folder selection dialog box.