Hongwu, .pif files are left over from the days of Windows3.1x. They are used to set system enviroments and to define the memory needed by a program. Windows 95 still contains a lot of 16 bit code and shares many features with Windows3.1x so they are still used. WinNT is entirely 32 bit code and does not use these files in the same way, so they will not work and windows will therefore not know correctly the requirements of GSAS. The 'set' commands in WinNT are a patch, but are not really meant for this job. In short, these .pif files are OK for Windows95 and Windows98 but not for WinNT. As Tom said, if you run in a DOS window everything works fine... -Andrew -------------------- Andrew Wills (Dr.) Centre D'�tudes Nucl�aires de Grenoble DRFMC/SPSMS/MDN 17 Rue des Martyrs 38054 Grenoble C�dex 9 FRANCE ____________________________________________________________________ More than just email--Get your FREE Netscape WebMail account today at http://home.netscape.com/netcenter/mail
