Are Microsoft planning on fixing this problem ? It is not an easy workaround
although we will have to implement if no fix is planned. How do I know which
calls are going to fail ( e.g. Workbooks.Add() in the article does not seem
to require an LCID so why does it fail ) ?

P.S. How did this pass QA ? Any application automating Excel will fail the
minute it is run on a foreign locale machine without a language pack
installed. This seems a common enough scenario to test ?