The two biggest issues we found with Web Client were as follows:
1) Screen Scaling. We make use of 32 Rows in the GUI and just couldn't manage to draw the same screen through the web client without having scroll bars.
2) Inactive window. If you use
A more minor issue was that when you exited the ProIV application, the web client stayed open on a gray screen.
It is possible that ProIV has resolved these issues. We are very anxious to use Web client for some of our clients who have hundreds of workstations that they have to maintain...