Hi,

We do not support multiple versions of the MonetDB ODBC driver on MS
Windows. You can only install one version. At installation it will
detect first if an older version is already installed and remove it
first before the newer version is installed.
This process is standard on MS windows.

You can view the installed ODBC driver version via the Drivers tab of
the ODBC Data Source Administrator. This program (odbcad32.exe) can be
started from a commandline or via the Control Panel.

We advise to always use the latest available MonetDB ODBC driver
version. Newer MonetDB ODBC driver versions will also work with older
supported MonetDB server versions.

See for latest available MonetDB ODBC driver:
   https://www.monetdb.org/downloads/Windows/Latest/

If there is any problem with the latest (11.43.15.01) MonetDB ODBC
driver we would like to know it. This should be done by creating a new
issue report at:  https://github.com/MonetDB/MonetDB/issues

Regards,
Martin

On 22-06-2022 11:03, imad hajj chahine wrote:
> Hi,
>
> Is it possible to use 2 versions of the odbc driver simultaneously on
> the same windows machine?
>
> Since the windows installer does not allow this, I copied the
> installation folder from another machine and register the driver using
> the following command:
>
> odbcconf /A {INSTALLDRIVER "MonetDB ODBC Driver Old|driver=C:\Program
> Files\MonetDB\MonetDB ODBC Driver Old\lib\MonetODBC.dll|Setup=C:\Program
> Files\MonetDB\MonetDB ODBC Driver
> Old\lib\MonetODBCs.dll|APILevel=1|ConnectFunctions=YYY|DriverODBCVer=03.52|SQLLevel=3"}
>
> In the registry and the ODBC datasources the driver "MonetDB ODBC Driver
> Old" is registered correctly, but when I try to create a DSN for the new
> driver I am getting Error "Invalid Driver name".
>
> Does the Monetdb odbc driver need to have the exact name "MonetDB ODBC
> Driver"?
>
> Thanks.
>
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