Visual FoxPro driver for 64 bit Windows 7

It's a bit late, but may help somebody else:) You can use Advantage OLE DB Provider for Windows 64-bit, which works like VFPOLEDB. Example in python:

conn = win32com.client.Dispatch('ADODB.Connection')
dsn = 'Provider=Advantage OLE DB Provider;Data Source=%s; ServerType=ADS_LOCAL_SERVER; TableType=ADS_VFP;' % folder
conn.Open(dsn)
cmd.CommandText = 'ALTER TABLE test ALTER COLUMN area NOT NULL'
cmd.Execute()

I have found out that there is no 64 bit VFP Driver for 64 bit OS. All we have to do is to change the build option in project properties and set the Platform Target to X86 instead of Any CPU. Build the application for X86. Please refer to this for more details.