Need to get the data model of salesforce in MS Visio.

Created ODBC connection using Datadirect ODBC connection.

Using this ODBC connection in MS Excel, I was able to connect and import a table from Salesforce.

But I am not able to connect to Salesforce through Visio.

It throws Error

[Datadirect ][ODBC Salesforce driver] [Salesforce] File input/output error: <Databasename>.log 

I have tried both User DSN and System DSN in ODBC admistrator.

When using System DSN it throws error

Database is in use. Operation cannot be completed.

I am using 64-bit operating system. but the ODBC driver, MS office applications everything is in 32-bit.