when I installed MS_DOS using partiation C: (FAT) and then installed XP using two partiations D: and E: (NTFS) i had a two problams: 1. First when I detect my CD-ROM & RW-CDROM as E: and F:- this two drives could be detected in XP but when I tried to detect the CD-ROM in DOS he just couldn't find there drives and install them in DOS too.. and I want DOS detect them as E: and F: just like in XP what should I do? 2. I only can't detect sound in MS-DOS and my sound card is AC97 Avance that is part of my mother board.. is there a sound drive for this sound card for DOS? please help.

Dos wont read NTFS drives, so ur cdrom will only be read as drive letter D As XP doesn't have an underlying dos, I don't think ur'll get sound working either !!

IS: For the DOS boot did you install a DOS CDRom driver in the config.sys file and a corresponding mscdex.exe line in the autoexec.bat file? Keef444 is right since DOS cannot "see" NTFS partitions, once the DOS CD driver is loaded properly the CD drives will use the next available drive letters "D: and E:".

In your DOS autoexec.bat file there will be a line like this: MSCDEX.EXE /D:mscd001 /L:X The /L: parameter will address your CD drive with which ever letter you want. In the example above, the drive letter would be X. As to your sound problem, try installing/loading generic DOS Sound Blaster drivers. They work on quite a lot of different sound cards for basic sound. You'll probably have to parameterize it in the autoexec.bat as well. May be something like this (from an old DOS boot floppy for my old C-Media integrated sound chip): A:\SOUNDPRO\CMINIT /WA:530 /WI:11 /WM:0 /VA:220 /VI:5 /VL:1 /VH:5 /MD /MA:330 /MI:9 /GS:200 /FM:388 SET BLASTER=A220 I5 D1 H5 T4 A:\SOUNDPRO\CMMIX /MFF000 /FEE000 /WEE000 /LEE0EE /EEE0EE /AEE0EE /D00100 /C70170 /310200 /O10200 /S00000