Howdy All from AZ; FYI: I have found you need a dos emulator like DOSBOX to run 16 bit applications under windows vista 64. I have been able to successfully compile older dos exe programs using powerbasic for dos under DOSBOX from within Windows Vista 64. MSDOS is the best program for me to record seismic or whatever data logging needs to be done. The rest of you probably laugh at this but I need a machine dedicated to a single program and it seems the newer OS like windows VISTA will not do this. MSDOS seems the only way. DOSBOX 7.xx is like freeware or donateware right now but I suspect it will not always be so as operating systems refuse to run older softwares. comments welcome. Best regards PSN; geoffHowdy All from=20 AZ;FYI:I have found you need a = dos=20 emulator like DOSBOXto run 16 bit = applications under=20 windows vista 64.I have been able to = successfully=20 compile older dosexe programs using = powerbasic for=20 dos under DOSBOXfrom within Windows = Vista=20 64.MSDOS is the best = program for me to=20 record seismic orwhatever data logging = needs to be=20 done.The rest of you = probably laugh at=20 this but I needa machine dedicated to = a single=20 program and itseems the newer OS like = windows=20 VISTA will not do this.MSDOS seems the only=20 way.DOSBOX 7.xx is like = freeware or=20 donatewareright now but I suspect = it will not=20 always be soas operating systems = refuse to run=20 older softwares.comments=20 welcome.Best regards=20 PSN;geoff