Re: [MiKTeX] Unknown archive type

[Christian S. <cs...@mi...>]

Ehrt, Michael wrote:
> Hi,
> 
>>> Someone suffering the same problem as I do, attempting to 
>>> upgrade packages in 2.5? Haven't tried with 2.6.
>>> Installer complains about "unknown archive type".
>> Update first the miktex related packages.
> 
> This will solve it in 2.6. I doubt that there's a 2.5 binary that
> supports the new archive type though, that was a very recent change in
> 2.6, when 2.5 was already "considered out-of-date". So those updates may
> never work again in 2.5.

LZMA compression is supported in 2.5. See http://miktex.org/2.5/Issues.aspx