You can use ODBC or OLEDB. You will find the drivers for these on the Medisoft disk. Regardless of which way you go, you must log in with a username and password. Accessing by field offset would certainly be a hard way to go when you have a data dictionary and OLEDB at your fingertips.
[quote user="alborg"] I also liked it when it was able to communicate with ODBC rather than HL7, which is much more complicated and costly. [/quote] ODBC still works with Medisoft. You can also use the newer OLEDB interface.