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**NOTE: This property has been deprecated in this release.**

A property of the SYSTEM built-in variable in 16-bit programs that returns one (1) if the operating system supports long filenames, and an empty string ('') if it does not. 32-bit operating systems all support long filenames. (READ-ONLY)

**Example:**

** IF SYSTEM{PROP:LFNSupport} = TRUE**

**  MESSAGE('Long Filenames are supported')**

** ELSE**

**  MESSAGE('Long Filenames are NOT supported')**

** END**