Thanks for your quickly reply

I see the SysDir Message of Ed Rauh in this foroum with this:

DECLARE INTEGER GetWindowsDirectory IN Win32API ;
	STRING  @cLocation, ;
	INTEGER nSize
LOCAL cLocation, nSize

m.cLocation = SPACE(256)
m.nSize = GetWindowsDirectory(@cLocation, 256)

IF nSize > 0
	*
	* Got it - it's the size of the return
	*
	cLocation = LEFT(m.cLocation,m.nSize)
ELSE
	*
	*  An error occurred when retrieving the value - return the null string
	*
	cLocation = ''
ENDIF

This code works OK!

Thanks again!