MultiDOS Server http://geocities.yahoo.com.br/freedosg
is a multitask graphical application which suports the majority of
updated Operating Systems, greatly compatible with hardwares and
other softwares. Besides, MultiDOS is fully compatible with
Linux, MacOSX, Windows platforms.
Take a look at the resources of this platform, below:

It recognizes the following partitions
NTFS (Windows XP/NT)
EXT2/EXT3 (Linux)
FAT32 (Win95 OSR2, Windows 98, Windows ME)
FAT16 (DOS)
HPFS (OS/2 Warp)
Bootable by the CD-ROM without the need of reconfiguring;
A RAMDISK is automatically created if a Hard Disk is not connected;
ISDN, xDSL (PPoE) protocols are supported as well as LAN
(DHCP, BOOTP);
Even a 386-class PC may be turned into a HTTP/POP3/SMTP/NEWS
server or Gateway;
Many peripherals using an USB port may be connected, including HD,
RW/R-CD recorders, printers, all of them with no need of a special driver,
because they are automatically recognized and set up;
Linux emulation has been supported as if it were a native program;
If sound card is fully compatible with SoundBlaster, it is detected
by the system automatically;
A special emulator installs and sets up MacOS 7.0;
DivX, XVid, MPEG-2, MP3, OGG Vorbis, DVD, among other modern
standards of multimedia, are detected by the system;
A brand-new graphical interface "SEAL 2" allows real multitask mode
programs to run as Windows, Linux or MacOS do;