Access has a 1gb file size limit, i believe. Might need to use mysql if this is the problem.

Alternatively it might be the unc paths vs windows services that is the issue (there are details in the v3.8k read me)

With regards to TTS you need to send an xPL message

Might be an idea to visit http://www.xplproject.org.uk/ and join the ukha_xpl yahoo group for further info.