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PSYCHOPATH()

    Do not be alarmed.  This function is harmless, and occasionally,
    even indispensable.  It tests whether a file exists in the current
    DOS path.

    Syntax

    PSYCHOPATH(<filename>)

    Required Parameter

    <filename> is a character string representing the name of the file
    to locate in the DOS path.

    Return Value

    A character string representing the directory where the file was
    found. If the file was not found in the DOS path, PSYCHOPATH() will
    return a null string.

    Sample Usage

    IF ! EMPTY(PSYCHOPATH("PRTSCR.COM"))
       RUN PRTSCR                       
    ENDIF