The DLL, Dlxext32.dll, is an update that is required only for
the combination of TestPoint version 4.0 in Windows 2000 Professional
with an A/D board that uses DriverLINX.

The symptom is that when using the Acquire A/D or Start A/D operations,
an error message will occur.  The DriverLINX error message is "handle 
does not refer to valid memory object".

Users of TestPoint 3.x in Win2000 should not apply this update.
Users of TestPoint 4.0 in WinNT should not apply this update.

Locate this file into your the DriverLINX common directory (normally
C:\DriverLINX4\Common), replacing the existing version.


