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Can somebody tell me the difference between the two? do they have the same commands? what is the advantage of one over the other? Will IBM PC DOS run on PC's other than IBM's like MS-DOS will? Which one do you think I should install?

i have pcdos 2000 as well. there is VERY LITTLE difference between msdos 6.22 and pcdos 2000. even the 'undocumented' and 'hidden' command switches in msdos will work on PCDOS 2000. i love it.
this is in comparison to the differences between msdos 6.22 to drdos 7.03 or phytechsoft dos.

The only real advanage with PC-DOS 2000 (aka PC-DOS 7.0 with Y2K fix) is that it has native Mouse & PCMCIA Card Srvices support as extras.

PCDOS 2000 from IBM
- FAT16 ONLY! :(
+ Y2K Compliant
+ PCMCIA Support
+ REXX Language Support
+ Stacker Compression
+ IBM AntiVirus
+ Excellent Memory Management
+ 100% MSDOS Compatiblemost utilities came from pctools 9.

Souns like it's a good thing that I downloaded it. I will install it on my restore PC post-haste. Ciao, MSDOS; Hola PCDOS!

If Mico$oft had marketed it better, Updated Anti-Virus and added a little more support..It would be as good as or better than PC-DOS 7/2000 But as it is it has become dated and lacking in extra features. Just think of the sales of Retail Packaged MS-DOS 7.0 with Y2K, Large Drive Support (FAT32), PCMCIA Card Services, Mouse & Drivespace 3.0 could have been? That they have missed out on!
DOS is dead - Who says so?
...

I use OpenDOS 7.01, 7.02 and DRDOS 7.03.
There is also a 7.04/705 kernel available (with bug) at: www.drdos.org

PCDOS 2000 Links
http://www.miniventures.com/softy/
- read corp.nfo, it's a text file
- individual files, not a good distrohttp://geocities.com/eltumbong/
- click on the "click here"
- disk imageshttp://filebank.icolony.ph/cgi-bin/item.cgi?itemid=6417&
- disk imagesfor the disk images:
loaddskf.exe pcdos_X.dsk A:
where X is the disk image number.

Scoop on PCDos vs. (any)MSDos. PC Dos was written for IBM, by Billy Gates' crew. PCDos was tested by IBM MS Dos was, often or not, tested by the (end user) customers of Microsoft. IBM testing found and corrected bugs as they were found. Of course, MS Dos had "no bugs", but the "newer" version would correct the "problem", sort of like "we left the gearshift out of the earlier version of this car, but when you buy the new car, we include the gearshift".

Yeah he's right about that. Does anyone remember the time between 6.0, 6.2 and 6.22? If memory serves it was extremly short comparted to the time between 5.0 and 6.0. I don't even remember seeing any 6.2 distros anywhere. I was very dissapointed when MS dropped Dos completely. Thankfully though I keep it running on my old 166 machine so I can play all of my old DOS games without any compatability issues. (The machine has a great BIOS with so many hardware slowdown options that I have yet to need moslo or any other program.) I play the older games so much I even bought an Roland LACP-1 to hear the music at it's best. (The LAPC-1 was an MT-32 music synth built into what has got to be the longest freaking card I've ever seen. For those who don't know, many late 80 early 90 games used this card for music before later and sometimes better synths like the Sound Canvas, which I am also trying find in the form of a daughterboard for my SB16, were made.)
I've thried freeDOS and OpenDOS (now Caldera DR. Dos), but niether of them are that compatable with MS DOS Programs. For compatabily you want to go with MSDOS 6.22 or PC DOS 7/2000. BTW if you do use MSDOS 6.22, search for and dlownload the supplemental disk. I think it's still in the MS knowledge base. This disk adds back all of the stuff that was there in 5.0+, but isn't there in 6.22 (Basic, dosshell, plus other tools.)
It's just too bad that all versions of DOS have the same inherent problem (no not Fat16 I actually don't mind that. In fact having that would probably make it incompatalbe with some of my games which is the reason I have a dos comp to begin with) no I mean the no seeing anything above 8GB problem.
I recently had to replace my 3.2GB hd with a 16GB one and buy a promise controller to get access to the new drive. Problem was DOS wasn't able to access anything more than:
1 2GB primary Partition
1 ~6GB extended patition
3 logical drives inside said partitionWell I've always used Partition magic to dualboot the comptuer anyway. The way it works is there are two primary partitions. This way neither OS knows the other even exists. The old setup was one 2GB primary for DOS, a 1GB primary for Win95b, and the leftovers went to a FAT16 drive so that I could transfer between OSes.
When I saw this new problem I used PTmagic to verify that the computer itself could handle the size just fine withthe promise card installed and the space was there. So I read around and found out that I had to make my Win9x primary parition take up ALL of the extra space. If I told PTmagic to make an extended partition larger than the one DOS Fdisk made, Dos would only see it's primary drive.
This way DOS (no matter which version) gets 8GB of space and Windows (and maybe linux in the future since I don't have nearly enough old windows games to fill that up.) gets the rest.

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