Migration Assistant won't do verification

I have read the migration assistant tips and tricks, and questions on this matter and I cannot find an answer, please help.

This is my first apple computer (MBP Retina) and I want to migrate email, calendar etc from my Windows 7 desktop PC.

I installed Windows Migration Assistant (WMA) on the PC.

I connected an ethernet cable directly from the PC ethernet port to the MBP thunderbolt port.

I started the migration assistant software on both computers. On the MBP I select 'Migrate from PC to Mac'.

The MBP recognises the PC by name, so I click on the displayed name and 'Continue'.

The MBP throws up a 6-digit verification number and tells me to verify it on the PC.

BUT.... the PC WMA software never displays the verification number. I can wait for hours. The migration assistant will not proceed without the verification number appearing on the PC.

I have restarted both computers and the same thing happens.

Please help me.

If there is no solution, what is the 'unassisted' way to migrate from PC (Office 2010) to Mac?