DiskXtender on server 2012

Hi

I recently migrated my file server from windows 2003 32bit to server 2012 Datacentre
64bit.

When I retrieve a file from the centera on the new server 2012 it works
100%.

The problem is when I try to retrieve a file from a network attached
computer connecting to a share created on the file server.

When I open a document, spread sheet or any other file the application
(Excel, word etc.) complains about version type is wrong, but when I open the
file for a second time it works fine.

I've updated DiskXtender to the newest SP but this doesn't resolve the
problem.

DXFSM_6.50.520_64bit