I was just curious if anybody has run into this yet. I installed the 16.6 upgrade last week, and it seemed to work just fine. This morning, when I tried to double-click a board (.brd) file to make some edits, I got an error message that says "The program can't start because cdn_xerces-c_2_7.dll is missing from your computer. Try reinstalling the program to fix this problem." But, if I open up OrCAD PCB Editor and then click "File" and "Open" and then browse to the file it will open it that way. It didn't do this to me last week when I first installed the upgrade. Right now, all of my existing board files were generated using the previous 16.5 version of software.
Has anybody else had this problem?