MSDASQL. It is implemented in %CommonProgramFiles%\System\ole db\msdasql.dll. provider key, the system defaults to this Microsoft OLE DB Provider for ODBC Drivers (or short: «MSDASQL»). HKEY_LOCAL_MACHINE\SOFTWARE\ODBC odbcDriver. The cmdLet get-odbcDriver returns a list of installed ODBC drivers. System.Data.Odbc namespace. workbookConnection object of Excel seems to be able to connect to ODBC sources. odbcconf.exe.