Documentation for PostgreSQL win32 ODBC-Driver 8.02.05.00 and connection strings

Hi all,
we are currently quite unsucessfully looking for a documentation for the
win32 odbc-driver, current version (8.02.05.00).

Is there a document describing all features, eg Extra Opts 0x10, etc.?

Additionally were looking for some help in understanding which option is set
where in the options of a connection string like

strConn="ODBC;DRIVER={PostgreSQL};DATABASE=myDb;SERVER=192.1 68.0.91 ;" & _
"PORT=5432;UID=myDbUser;PWD=pass;A0=0;A1=7.4;A2=1;A3=0;A4=1;
A5=0;A6=;A7=100;A8=4096;A9=0;"
& _"B0=254;B1=8190;B2=0;B3=0;B4=1;B5=1;B6=0;B7=1;B8=0;B9=1;C0=0
;C1=0;C2=dd_"

well, some parts are quite obvious, like B1=8190, C2=dd_, we just cant find
out, which parameter describes which option.

Can anyone help?

Best Regards

Jochen