🚀 go-pugleaf

Does anyone know of a reference to the "undocumented options/switches" that
can be set in the win.ini file?  (particularly for windows/386 2.1x)
I know of four such critters (see below).  Should we (I? 8-) ) compile
a list?  Does MS make such a list available?  Contributions and ideas
welcome.
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The following all apply to Windows/386 2.1x in the [win386] section of
win.ini...
--
virtualhdirq=off
...default=on, setting this switch _appears_ to force windows to do three
...things:  use only "standard" BIOS calls for disk access (thus ensuring
...that intercepts for network-shared disks do happen);  not look directly
...into SMARTDRIVE buffers for disk data;  prevent SMARTDRIVE from helping
..."standard" BIOS disk access (does SMARTDRIVE ever help BIOS disk access?)
--
emmpageframe=0ww00
...default determined at windows startup?
lastemmseg=0xx00
...default determined at windows startup?
emmexclude=0yy00-0zzFF
...default=no-exclusion
...ww is the lowest EMM page frame to be used
...xx is the frame after the highest page frame to be used
...yy is the low page frame to exclude from the ww-to-xx range
...zz is the high page frame to exclude from the ww-to-xx range
..._note_ that ww=xx would mean _no_ EMM frames
..._note_ that yy=zz excludes one frame
...ww,xx,yy,zz must be multiple of 4 (=> multiple of 16K bytes in memory)
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regardz,
Ken