Em 4/3/2011 15:12, Gerhard Fiedler escreveu:
> Joe Koberg wrote:
>
>> Getting bitten by proprietary vendor file formats is common.  Try to
>> find something to open old WordPerfect documents with some accuracy!=20
>>
>> This is one of the biggest reasons to choose open source software and
>> software that uses open file formats to me.  The vendor can't
>> disappear.
> The source repository/download site may disappear.


You should keep a copy of the repository if it is not yours, or at least
a backup of the revisions you ever used.


>  So you have to make
> sure you have always the sources locally and know how to build the
> executable from them -- and you have to make sure you keep a system
> around that actually runs it.


That's why I keep some old mainboards and backups of old OS's
installation disks around.
Fortunately, for some systems there are emulators.


Isaac

--=20
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