I am migrating an SQL Server application from the DB-Library API to
ODBC. In order to avoid application-level code changes, I was planning
to create an ODBC interface written to the DB-Lib specification as a
replacement module for NTWDBLIB.DLL, where a call to "dbopen" would
perform a "SQLDriverConnect" under the covers, for example. I realize
there will be a performance cost for the additional layer, but that's
a trade-off I'm willing to accept for zero application code changes.

This being a bit tedious, I was wondering if anyone knows of a
Microsoft (or otherwise) document listing the mappings between these
two interfaces, since they are functionally very similar.

In other words, a list something like this...

DB-Library..............ODBC
dbbind..................SQLBindCol
dbcancel................SQLCancel
dbcanquery..............SQLCloseCursor
dbclose.................SQLDisconnect
etc...

The other question I have related to this idea concerns that of
copyright protection. Is it even legal to do what I am proposing to
do? That is, use the DB-Libary interface specification as the basis
for my own code?

TIA,
Mickey