I re-installed my OS over the weekend and ended up getting this error
"you need the following file to be installed on your machine msstdfmt.dll"
when trying to access the Buildings screen. I was able to resolve by getting a copy of the dll from an MS Exchange Tool package. Definitely needs to be added to the installer.
EDIT: Heh, since the re-install of my OS I've noticed sounds in the Winplan32 client that seldom worked before have started to work more frequently. Most notable are the hit sounds in the built-in VCR player. Also, when changing ships the sounds are more frequent now. Approximately 80% of the time it makes the noise, whereas before it was more like 20%.