Hi Dan,
I've never seen error 1073 when building an executable, but I have seen
it when trying to do other things through VI Server. In my case,
the problem occurred because some of the VIs I was trying to manipulate
were set to read-only on disk. You should double-check to see if
your LabVIEW files (particularly error.llb) are set to read-only, and
if so, change them to be writable. I think this behavior was a
bug in VI Server that is fixed in LabVIEW 8.0.
Good luck,
-D