Uni-Code with OPEN DATASET 4.6C ->4.70

Hello,

we have a 4.6C development system and several reports which use OPEN DATASET IN TEXT MODE to read files from server.

These reports are transported to a 4.70 Rel. and there we have a uni-code problem. The transaction "UCCHECK" marks this reports with an error-flag and the message: "In TEXT MODE" the "ENCODING" addition must be specified".

Problem: In 4.6C the addition "ENCODING" doesn't exist!!!

How can I solve the problem? How can I use the OPEN DATASET in 4.6C so that it is uni-code compatible?

Regards,

Ole.