LabWindows/CVI Run-time Engine for Windows 9x/NT, Version 5.0.1 Patch 4         
                              Documentation File
         (c) Copyright 1993, 1998.  National Instruments Corporation.
                             All rights reserved.


Patch 4 is the first publicly-available updated version of the LabWindows/CVI
5.0.1 Run-time Engine.  


Patch 4 Files
-------------------------------------------------------------------------------

    disk1.zip          (Disk 1 of 2)
    disk2.zip          (Disk 2 of 2)

    These files make up the two installation disks for the patched version of
    the LabWindows/CVI Run-time Engine v. 5.0.1.  You may unzip each file onto
    a separate floppy or to separate "disk1" and "disk2" directories on a hard
    drive.  Run the setup program on Disk 1 to install the patched version of
    the Run-time Engine.
    
    These disks contain a complete Run-time Engine installation and as such do
    not require an existing LabWindows/CVI environment or Run-time Engine
    installation.  Any existing version of the Run-time Engine will be replaced
    with this backwards-compatible updated version.


Changes to the original v. 5.0.1 RTE contained in this update
-------------------------------------------------------------------------------

The following changes/fixes are contained in patch 4 for the LabWindows/CVI 
Run-time Engine v. 5.0.1 for Windows 9x/NT:


* RecallPanelState now correctly restores a numeric controls maximum, minimum,
  and value even when the maximum value for the control saved by SavePanelState
  is less than the value of the control before the call to RecallPanelState.

* Printing and panel scaling no longer reset the first visible line when it 
  does not have to be reset.

* Changing a panel's ATTR_CLOSE_ITEM_VISIBLE attribute while the panel is
  minimized does not change the panel's restored position any more.

* A DDE server no longer gets the same handle for multiple clients that connect
  to the server at the same time.

* UnregisterDDEServer will now correctly unregister the server even when there
  are no clients connected.

* Font widths are now handled correctly when fonts are changed after a panel
  is scaled.

* Menus are no longer aborted if a menu attribute is set while the menu is up.

* SetFileDate no longer changes the file contents for files that have a
  particular sequence of bytes near the start of the file. LabVIEW .llb and
  LabWindows/CVI .uir files were being corrupted by the SetFileDate function.

* The value of the Timer function no longer jumps by 4290672327705 when the
  program has run for over 49.71 days.

* You can now enter the character with ascii code 255 in the User Interface
  Library controls.