I've searched a lot, but I still didn't find out a solution. I have to create a linked server to get the data from a mdb file (MS Access). I use the SQL Server 2012 Express x64 on the Windows 8.1 x64. I ran the odbcad x32 (the one that's inside the syswow64 folder), so I created the data source for this file:
But when I try to create the linked server I got the error:
Searching, I found out that the x64 SQL Server server can use any x32 driver. I can't see what I'm doing wrong.