We are going to upgrade YOKOGAWA OTS system, but DCS side YOKOGAWA and exatif is very very expensive. So we are going to just upgrade OTS side, only upgrade the dynsim to Dynsim 6.4, but DCS side will keep current version R5. Of cause we will install the OTS engine 6.4 on DCS engineering station. I am warried about because the DCS operating system is windows server 2008 R2, but the instructor is windows 10, I am not sure is there any issues or risks for communication?