The EU and Microsoft just can't seem to see eye to eye. After years and years in the courts and a guilty verdict a few years back, the EU has forced Microsoft's hand in releasing certain information that will help other companies create inter-compatible software with Windows and its components. Now, however, the EU is displeased with the way they are making that information available, and is threatening more fines. The reason? They are charging too much for it:

In the statement, Commissioner Neelie Kroes argues that the firm agreed the cost of access to its protocols should be determined by how innovative they are. Now the EC says the protocols are not innovative enough to justify the prices Microsoft is charging.
To their credit, Microsoft has solicited for feedback on their pricing system in this regards. Could they be headed back to the courts over pricing? MS certainly is not getting any breaks in Europe.