When I open the two index files (different extensions only) I have an error 
(error base/8071 alias already in use). Why? please help me.

Atomek

exampe:

field lpp_o,lpp_dok
Procedure Main
          Local as:='ksw',;
                plk    :='.\firma1\ks_wsp.dbf',;
                ind1   :='.\firma1\ks_wsp.lpp',;
                ind2   :='.\firma1\ks_wsp.lpo'

use (plk) alias (as)
dbselectarea(as)
index on lpp_o   to (ind1)
close index
index on lpp_dok to (ind2)
close all

use (plk) alias (as) new
dbselectarea(as)

dbsetindex(ind1)
dbsetindex(ind2)   error