
HP had spent considerable time and money on setting up new systems that were WDDM compatible and Walker’s frustration was made clear.
"I hope this incident isn't a foretaste of the relationship I will have with Microsoft going forward, but I can tell you that it's left a very bad taste with me and my team," he wrote in 2006.
"The decision you have made has taken away an investment we made consciously for competitive advantage knowing that some players would choose not to make the same level of investment as we did in supporting your program requirements."
It appears that Jim Allchin, a key player in the campaign at Microsoft, was also seriously annoyed by the decision.
“I am beyond upset here. This was totally mismanaged by Intel and Microsoft,” he wrote.
“What a mess. Now we have an upset partner, Microsoft destroyed credibility, as well as my own credibility shot.”
He then writes that he understood the decision came from Steve Ballmer, something Ballmer denied then, and continues to do so.
The case hinges on claims that Microsoft new that so-called ‘Vista Capable’ PCs would only be able to run the cut down version of Vista, without the Aero interface.