Windows 2k/XP/2003/Vista are NT. When I say Windows NT I am also referring to those other operating systems.
Windows NT 3.51
Windows NT 4.0
Windows NT 5.0 (Windows 2000)
Windows NT 5.1 (Windows XP)
Windows NT 5.2 (Windows 2003)
Windows NT 6.0 (Windows Vista)
They all pretty much use the same NTVDM with barely any compatibility difference. The biggest change to NTVDM was in XP with emulated SB sound (terrible compared to VDMSOUND) and the CLI/OP fix.
The next biggest change to NTVDM was in vista which eliminated full-screen DOS apps from working when using WDDM drivers and some loss in compatibility with 16bit applications.
The only reason it seems pointless to you is because you use a MAC and you are not aware of the difficulities involved of using DOS games on an NT system. Right off the bat you come in these forums and you can't figure out "for the life of me" why people would be using a DOS emulator on an NT system "because it already HAS DOS" when it obviously doesn't.
Regardless, your attitude has put me right off the community
Reread your post. Think about it. Read my post. Think about it. Try to think why I responded the way that I did to your post. Think about it some more. Then you can retract your incorrect statements in your lates post, be a big person and stop whining.
I already explained why the MAC documentation was not up to snuff with the Windows\Linux documentation and what you needed to do to help correct the situation.
Reasons performance can be poor using the MAC version of DosBox:
1. You are not using the latest version of DosBox.
2. You are not using a version of DosBox capable of Dynarec.
3. You are using a version of DosBox capable of Dynarec but have not configured dosbox to do so. (Set core=dynamic in DosBox.conf).
MAC users are welcome on these forums, but people that assume things about why people do things when the person doing the assuming doesn't have any knowledge of the systems that they are making statements about are definetly not welcome.
Finally, it's common knowledge that OSX is slower than Windows on the same hardware for certain apps. I have no idea of the performance difference in DosBox between Windows/OSX on the same hardware but all I ever hear from OSX users who have both OSX and Windows on their systems is how their MAC versions of their games on MAC run much faster in Windows when using their Windows version. Considering that most of DosBox development has been for Windows\Linux and that those are the OS's that most DosBox users use and that the dynamic core for DosBox in OSX was recently integrated into DosBox (Compared to dynamic core for Windows which was integrated back in 2004), I would not find it very suprising if DosBox is slower in OSX compared to Windows.