Politico has an anti-trust article about Google's battle and how Microsoft is one of the main supporters of the anti-trust efforts.

Tech war: Google vs. Microsoft
By: Elizabeth Wasserman
February 9, 2011 04:38 AM EST

Google is under siege in Washington like never before — and it says an “anti-Google industrial complex” is to blame.
In an interview with POLITICO, a Google spokesman argued that a cabal of antitrust lawyers, lobbyists and public relations firms is conspiring against the Internet search giant. The mastermind? Google says it’s Microsoft.
Maybe it’s irony, or maybe it’s payback.

NY Mag also has an article on the same topic.

Microsoft Tries to Give Google a Taste of Its Own Antitrust Medicine

2/9/11 at 10:00 AM

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Isn't that special?Photo: Miguel Villagran/Getty Images

If imitation is the sincerest form of flattery, then Eric Schmidt should be blushing right now. Back in the nineties when Schmidt, Google's recently demoted CEO, was an executive at Sun Microsystems, he helped the government's antitrust case against Microsoft, leaving an empty space that Google was more than happy to fill. Now that Google is the "tech industry wunderkind that got too big for its britches," says Politico, the company alleges that Microsoft is trying to do the same thing to them. It's not hard to see how a company that dominates Internet search and online ads, and could soon dominate smartphone platforms (Android) and mobile ads (AdMob), andwants to buy the software that figures out the best fare and seat on an airline to put competitors out of business, looks like it's playing with Monopoly money. But Google alleges that the only reason anyone cares is because Microsoft's harem of consultants and lawyers keep whining about it to Washington.

“We try to create lots of new technologies for consumers, and the companies and industries that we disrupt sometimes try to seek recourse in Washington,” said Adam Kovacevich, a Google spokesman, who recently was detailed to deal solely with antitrust issues. “In particular, Microsoft and our large competitors have invested a lot in D.C. to stoke scrutiny of us. But our goal is to make sure that we can continue creating cool new things for consumers.”

Right, then once we've made that cool new thing indispensable, we charge other companies for access to those suckered-in consumers.

One of points made is.

One of Microsoft’s antitrust attorneys, Charles “Rick” Rule, of the international law firm Cadwalader, Wickersham & Taft, wrote in The Wall Street Journal in a September op-ed piece that Google is a monopolist and should face an investigation.
“What goes around, comes around,” he wrote.

A good friend who I have worked with over 20 years at Apple and Microsoft and I were once talking about how Oracle, Sun, Novell were all happy about the anti-trust case was taking Microsoft down. His point was how dumb the tech executives were because now you gave the attorneys and gov't a way to regulate and interfere with technical innovation.

This same friend now works at Google, and he would probably find it quite ironic that Eric Schmidt is dealing with what he started while at Sun and Novell.