One caveat with using NuLib to extract SDK files to DSK files. According to
the manual, it extracts them as ProDOS-ordered DSK files. I have never had a
problem with ProDOS-ordered DSK's, but I have been told that some emulators
only work with DOS-ordered files.

If this is a problem, one can use the MAPPER program to convert a
ProDOS-ordered file to a DOS-ordered one.

Tom Zuchowski

"Jonathyn Bet'nct" <jonrelay@napanet.net> wrote in message
news:987298626.111955@proxy.napanet.net...
> "Derrick Chalom" <dchalom@mediaone.net> wrote in message
> news:t7_B6.1576$nO2.2952248@typhoon.ne.mediaone.net...
> > Hi there,
> >
> > I have AppleWin on my machine, and have been having lots of fun with my
> dsk
> > files.
> > but I just have a few questions for the group.
> >
> > 1) I recently downloaded some files that had a .SDK extension.
> > what are these and how do I play them?
>
> Those are disks compressed with ShrinkIt (the Apple II compression
program).
> You can use NuLib (www.nulib.com) to turn those into DSKs.
>
> > 2) I tried to play something recently and it gave me an error
...something
> > to the effect of
> >     "could not load PRODOS" or something like that.
> >     I understand that ProDOS is probably an alternate OS for the Apple
> > IIe...
> >     My question is, how do I play these games that require ProDOS?
>
> ProDOS isn't an alternative OS; it's a newer OS that Apple made that
> supports directories, more types of files, hard disks, etc. To play those
> games, you need to put a copy of the PRODOS file on the disk, or boot a
> ProDOS startup disk and run it from there.
>
> > thanks in advance for your help
> > and thanks to RubyWand for (his/her) help on my previous question
>
> It's 'his.'
>
>