The default message-encoding behavior of SQL Remote is as follows:
For message systems that can use binary message formats, no encoding is carried out.
Some message systems, including SMTP, VIM, and MAPI, require text-based message formats. For these systems, an encoding DLL (dbencod.dll) translates messages into a text format before sending. The message format is unencoded at the receiving end using the same DLL.
You can instruct SQL Remote to use a custom encoding scheme. The tools for building a custom encoding scheme are described in the following section.
If the compression database option is set to -1, then a Version 5 compatible encoding is carried out for all message systems.
Support for VIM and MAPI is deprecated.