Steve Ballmer called "an important step and significant change in how we share information about our products and technologies." This pledge has been accepted with some skepticism. Infringement claims Microsoft has claimed that free software such as OpenOffice.org and the Linux kernel violate 235 Microsoft patents and said that it will seek licence fees, but has so far failed to disclose which patents they may violate. However, the 2009 lawsuit against TomTom involved the use of Microsoft's patents for long filenames on FAT filesystems, the code for which was in the Linux kernel, not in any TomTom-developed software. The Linux kernel developers subsequently worked around it. In 2011 a company called Bedrock Technologies LLC won a judgment of $5 million against Google for use of the Linux kernel, which the court found to violate US patent 5,893,120 (which was filed in 1997 and issued in 1999, and covers techniques for software caches likely used in every modern operating system). Bedrock went on to sue Yahoo and lost; Yahoo's defense amounted to the use of a different version of Linux which did not execute the particular code that Bedrock had pointed out as infringing, but the Yahoo case did not invalidate Bedrock's patent. Details of exactly which code Bedrock said infringed the patent and how Yahoo managed to avoid executing that code are not publicly available. In January 2008, Trend Micro accused Barracuda Networks of patent infringement for distribution of the ClamAV anti-virus software. Microsoft's patent deals In November 2006, a highly controversial agreement was made between Novell and Microsoft that included patent licensing. This led to much criticism of Novell by the free software community. In June 2007, Xandros announced a similar deal. On June 13, 2007, a deal was reached between Microsoft and Linspire. In return, Linspire would change its default search engine from Google to Live search. Ubuntu founder and director Mark Shuttleworth has said that Ubuntu will not be making any such deal, as have Red Hat. These have been joined by a weaker statement from Mandriva that "we don’t believe it is necessary for us to get protection from Microsoft". In October 2007, IP Innovation LLC, a company specialized in patent-protection, filed a suit for patent infringement against Red Hat and Novell. However, IP Innovation LLC is a subsidiary of a company classified by some as a patent troll, and commentators suspect a strong connection between