Today I was working on importing some data to DWH with SSIS packages. So I remembered problem that was giving me big headache back in days. I spent few days then resolving error: Error: 0xC0209303 at Package, Connection manager “mdbfilename“: SSIS Error Code DTS_E_OLEDB_NOPROVIDER_64BIT_ERROR.  The requested OLE DB provider Microsoft.Jet.OLEDB.4.0 is not registered — perhaps no 64-bit provider…