Siemens PCS7 v9.1

[Awais Sattar 0]

We need to upgrade Siemens PCS7 V8.1 to PCS7 V9.1. Can we able to do so without upgrading the windows of the EWS/OWS. If Yes then How we can do it and If no then what is the replacement? Please answer that question with best of your experience. Thanks in advance. 

[DanW 41]

Looks like no PCS7 users on this forum.  Have you tried the Siemens user forum at the link below (requires registration)?

https://support.industry.siemens.com/tf/us/en/threads/135/?page=0&pageSize=10