Hello, fox_dev!
You wrote  on Sun, 24 Oct 2004 13:09:35 +0100:

fd> hi,
fd> I am using foxpro version 3 for windows on toshib portatil  with window
fd> XP and  256 MB ram and working well but i made a upgrade of memory ram
fd> to 512 mb ,appear the "unsuficent memory" .
fd> All applications are working less visual foxpro.
fd>  What can do?

Check these:
FIX: Insufficient Memory on a Computer That Has 512 MB of RAM
http://support.microsoft.com/default.aspx?scid=kb;en-us;137809
FIX: Insufficient Memory in Visual FoxPro on Fast Computers
http://support.microsoft.com/default.aspx?scid=kb;en-us;179287
PRB: Insufficient Memory Message Running a FoxPro EXE
http://support.microsoft.com/default.aspx?scid=kb;en-us;190462
PRB: Insufficient Memory or Not Enough Memory for Application
http://support.microsoft.com/default.aspx?scid=kb;en-us;101808

Consider upgrading to VFP8 or, in a few months from now, VFP9. VFP3 is a
very buggy release and nolonger supported.