>> Then at that point you re - index your paths as you describe. If your
>> program detects that the alias has changed from a previous one (Sending via
>> Lan to new client program), inquire as to the location of the folder again,
>> and then re-index if need be.
>
>This is where I get lost. If I have to open each file, would I need to
>re-alias each file ?


No, you have only _1_ alias, for the master folder. Then you use your
normal path indexing approach after that, being that if you know where the
Master folder is, you know where the rest are, right?  Making 1000 aliases
doesn't sound healthy to me. :)

Robert