In the actual WinCC editing environment, I am able to paste unicode characters into text fields, and they display in their true unicode form while the field is being edited. Once I stop editing the selected field, the unicode charaters change and display only boxes. This is also what displays on the actual HMI.

This is what I am trying to represent in unicode (test purposes):
房子恐龍趣味太陽

I am in WinCC flexible 2008

I cannot find the date of the panel, but the system sais Windows CE v5.00 (build 1400) copyright 2005 Microsoft corp.

(96104 kb ram model)

Did you read this thread:

Hope this helps.