From: scw-tzg susan 1DOT wolitz AT trizetto 1DOT on
I previously posted related question in Office Developer Add-in group...
http://www.microsoft.com/office/community/en-us/default.mspx?dg=microsoft.public.office.developer.com.add_ins&mid=869e5007-3e31-46be-9d2a-f24ed5a324c8
....but I did not get any response, so I have reframed a more general
question here.

In one particular environment (Terminal Services session on MS windows
server 2003 standard edition SP2 with Office Professional Plus 2007 SP2),
when I try to save a file (programmatically) withOUT .docx extension, the
file is automatically saved with the extension. (The file I opened had a
name withOUT an extension.) I have run this code in many environments
before, including others that seem to be set up like this one, and the file
saved successfully without the extension. One additional note: when I do
SaveAs, Office always adds the extension, no matter what environment I run in.

Could this be the result of a policy setting? (Disclaimer - I know almost
nothing about policy settings.) I have looked through the ADM template
spreadsheet but I did not see anything that quite matched this situation.