Hi,

> I think you are overdoing things. 
may be ;-)

> I think doublezipping is also overdoing things. The doublezipping
> works because when you FIRST zip with NO compression and THEN pack
> that zip into another zip, then you can compress archives with
> several similar files better. 
exactly.

> But this is tricky to unpack
No.
> and needs more temp space. 
Yes.

>I recommend using TGZ in that case. 
not available for DOS.

> There are at  least TAR and GZIP for DOS

there is no need for TAR, as TAR is essentialy 
        xxZIP 'No compression'

> but only a monolithic TAR+GZ would avoid
> the temp space problem 

we are talking about 233 Kb TEMP SPACE (for XKEYB full set)
the last time, I 'installed' freedos, it took 6 Mb. permanently. without
asking.
(this was the 'easy freedos32' distro)


> And I think all this is too complicated  for our installer! 
sure. :-((

however InfoZIP supports redirection. at least in theory,

        ZIP -extract *.* | ZIP -extract GR*.*

is possible. the problem is with the installer, not with ZIP.

tom






Only use it when the differences are really big.
> 
> Eric.
> 
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