Date: Thu, 27 Mar 1997 09:31:28 -0600 (MDT)
From: Roger Ivie <IVIE AT cc DOT usu DOT edu>
Subject: Re: running opendos with win 95
To: OPENDOS AT DELORIE DOT COM
Message-id: <01IGZQ5TXXJ69ZM3A0@cc.usu.edu>
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Yeep said:
> That would explain why you can't get LFN while you boot MS-DOS only.
> If LFN is truly just a Win95 driver, than I think letting Win95 run of OD
> can't be that hard, becuase of LFN is done by Win95 itself, then why
> wouldn't other things be done by Win95 as well.

I recommend the book "Unauthorized Windows95". It goes into (obsesses 
about, actually) the relationship between Windows and DOS. It even lists, 
function by function, which functions are handled by Windows and which are 
handled by DOS.

Its conclusion is interesting: the relationship between DOS and Windows95 
is not much different than the relationship between DOS and WfW. If you 
have 32-bit file access turned on in WfW, Windows already takes over most 
of the DOS calls and MS-DOS (or OpenDOS) doesn't see them. Win95 does the 
same thing. There are, in fact, only a handful of calls in WfW which make 
it down to DOS. There is as slightly different handful in Win95 which make 
it down to DOS, but none of them are file access calls.

IIRC, the book does spend some time talking about what it takes to bring up 
Win95 under another DOS, but I skimmed that section so I don't remember any 
of it.

It may be a bit hard to find the book. I found my copy at one of those 
discount booksellers that sells old books that were returned to the 
publisher unsold....

Roger Ivie
ivie AT cc DOT usu DOT edu