MSSQL is support I have about 3 clients currently using it everyday to document their quality control procedures. So I know it works
You will find in db library located in lib/ options to convert the ? delimited query strings into a format suitable for the target database. You would just need to add whatever msaccess wanted to know, which if I remember rightly is also different depending on your access version!
Currently supported databases are mysql, postgres, oracle and mssql