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 PostPost subject: MS-DOS 6.21        Posted: Wed Aug 01, 2007 6:19 am 
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I was just wondering if that version of Microsoft DOS was released on to OEMs or if also went to retailers?

I downloaded a copy of it from the abanondedabw website and Installed it in Virtual PC. I typed help dblspace and it says you computer came with MS dos 6.21 which doesn't include dblspace. That statement led me to beleive it was OEM only or I just downloaded an OEM version.


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 PostPost subject:        Posted: Wed Aug 01, 2007 11:09 am 
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MS-DOS 6.21 never included dblspace. There was a lawsuit over 6.2 which made MS release 6.21 without dblspace, and then 6.22 with drvspace.


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 PostPost subject: Re: MS-DOS 6.21        Posted: Sun Jan 05, 2014 3:31 am 
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>I was just wondering if that version of Microsoft DOS was released on to OEMs or if also went to retailers?

>I downloaded a copy of it from the abanondedabw website and Installed it in Virtual PC. I typed help dblspace and it says you computer came with MS dos 6.21 which >doesn't include dblspace. That statement led me to beleive it was OEM only or I just downloaded an OEM version.

Yes, your downloaded version must be OEM or with Enhanced Tools version from Microsoft.


>MS-DOS 6.21 never included dblspace. There was a lawsuit over 6.2 which made MS release 6.21 without dblspace, and then 6.22 with drvspace.

Yes, MS-DOS 6.21 can't install Double Space.

Only upgrade version of MS-DOS 6.21 includes updated and patched file for Double Space.
That means, if the Double Space is installed from MS-DOS 6.0, the version of it must be updated (patched).

But if your patched file of Double Space is broken (corrupted), the installation must be failed.

http://support.microsoft.com/kb/113835/en

I wonder who have upgrade version of MS-DOS 6.21


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 PostPost subject: Re: MS-DOS 6.21        Posted: Sun Jan 12, 2014 10:43 am 
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Valid copy of MS-DOS 6.21 on 5.25'' floppies.

http://wdl3.winworldpc.com/Abandonware% ... 21%20(5.25).7z

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 PostPost subject: Re: MS-DOS 6.21        Posted: Sun Jan 12, 2014 11:48 am 
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MS-DOS 6.21 is basically MS-DOS 6.20, except that dblspace binaries have been removed. It still can load dblspace (or anything that pretends to be dblspace, such as superstor or stacker), but it's not in the package. There are actually very few files different between 6.20 and 6.21.


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 PostPost subject: Re: MS-DOS 6.21        Posted: Tue Jan 21, 2014 9:35 pm 
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>I was just wondering if that version of Microsoft DOS was released on to OEMs or if also went to retailers?

>I downloaded a copy of it from the abanondedabw website and Installed it in Virtual PC. I typed help dblspace and it says you computer came with MS dos 6.21 which >doesn't include dblspace. That statement led me to beleive it was OEM only or I just downloaded an OEM version.

Your downloaded MS-DOS 6.21 must be OEM version or other, but not Upgrade version.
I've dumped and uploaded my MS-DOS 6.21 with Enhanced Tools version. (same is MS OEM version.)


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 PostPost subject: Re: MS-DOS 6.21        Posted: Wed Jan 22, 2014 1:02 pm 
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The 'Enhanced tools' are not the 'supplemental disks'. MS-DOS 6 was sold to OEMs as two packages, basically 'dos 5' and 'enhanced tools'. The enhanced tools consist of a pile of separate packages similar to what you would buy retail. Microsoft had theirs as crippled norton stuff, while IBM used old-version centre point stuff. Some were written in house.

Here is a list of 'enhanced tools' by DOS. The three letter-codes refer to the ms-dos and pc-dos version x.x0,

pcdos: p52 = 5.02 p60 = ibmdos 6.0, p61 = pcdos 6.1,
ms-dos: m63 = msdos 6.21, m64 = ms-dos 6.22, m70 = win95, m71 = win98.
ms-dos m61 is the MS-DOS 7,1 beta 1, based on ms-dos 6.00.

It's pretty easy to see what makes 'enhanced tools' in MS-DOS and what PC-DOS did with them.

Code:
   ADOS                         m60       m62  m63  m64
   BASICA             p50  p52
   CPDOS5        m50  p50  p52  m60       m62  m63  m64
   CPBACKUP                                              p60  p61  p63  p70
   CPCOMMON                                              p60  p61  p63  p70
   DXXSPACE                     m60  m61  m62       m64                      m70  m71
   DOSSHELL      m50  p50  p52  m60  m61  m62  m63  m64  p60  p61  p63  p70
   E3-DOS                                                p60  p61  p63  p70
   EDITv2                                                                    m70  m71
   FILEUP                                                               p70
   IBMAV                                                 p60  p61  p63  p70
   INTERLNK                p52  m60  m61  m62  m63  m64  p60  p61  p63  p70  m70
   MEMMAKER                     m60  m61  m62  m63  m64                      m70  m71
   MSAV                         m60  m61  m62  m63  m64
   MSBACKUP                     m60  m61  m62  m63  m64                      m70
   NETWORK       m50            m60       m62  m63  m64
   PCMCIA                                                p60  p61  p63  p70
   PENDOS                                                p60  p61  p63  p70
   QBASIC 1.0    m50  p50  p52
   QBASIC 1.1                   m60  m61  m62  m63  m64                      m70  m71
   REXX                                                                 p70
   SSTOR                                                      p61  p63
   STACKER                                                              p70
   VIEW                                                                 p70


Microsoft released parts of the DOS on 'supplemental disks', or 'oldmsdos' in Win9x, you need to add these into the mix. The oldmsdos stuff is just straight-out unrecompiled 6.22 stuff.

ADOS is an IBM package, that microsoft used as a space-filler on the supplement disk.
BASICA is IBM's version of GWBASIC, which disappeared in MS-DOS 4.0
CPDOS5 is undelete, unformat, and mirror.
DOSSHELL moved to the supplement disk in vers 6.20, to make way for scandisk.
MSDRIVERS (mouse, mscdex, himem, emm386, ramdrive, smartdrv, msd) distributed also separately
NETWORK is a set of utilities like net.exe, which IBM expected to come out of the vendor's stuff.
VIEW is a viewer for OS/2 ipf files, which forms PC-DOS 7's help system.

eject and drvlock appeared in pcdos 5.02 onwards.
choice, deltree and move appeared in DOS 6.x, ms/pc. They all run under DOS 5.
acalc, crc, dynaload, appeared in DOS 7.0


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