> and he has not a network. he ist the only one user, but want to have 
> only the data on an another pc protected. the app itself should be on 
> his pc.

As many has said - this shouldn't be a problem.

For example, it is very common to use NAS-devices as a fileserver. The 
NAS is probably running some kind of Linux OS.

A Windows PC can see the shares on the NAS and you can then put the 
Paradox tables on the NAS - without having Paradox or Windows installed 
on the NAS.


Your questionss about the queries being remote or locally should be 
irrelevant as they have no meaning for queries agains Paradox tables.


Anders