I have fallowing problem:

- PC should replace some data on other PC over internet with such a code. yy is a table on a remote PC

sele 0
use xx  (table on local PC)

sele yy (table on remote PC)
set order to aa

sele xx
set relaton to aa into yy
scan
   replace yy.field with xx.field
endscan

Problem is how to detect crash of a internet avoiding error like "error reding/writing file" or similar? I can detect existing of disk X: (for example) before transaction, but what if internet going down in a middle of transaction? Is there a way to detect it, cancel operation and continue with a program execution?

Thanks in advance.