Paul Allen is not going to win any new friends over at Microsoft with his new book, Idea Man.

The co-founder of Microsoft is not so kind in the book to his former best friend and Microsoft co-founder Bill Gates. From excerpts of the book that appeared in Vanity Fair and The Wall Street Journal, Allen says Gates tried to cut down his ownership stake in Microsoft, takeing two-thirds. It also says when Allen was battling cancer, Gates worked with Steve Ballmer to diminish his role even further.

I helped start the company and was still an active member of management, though limited by my illness, and now my partner and my colleague were scheming to rip me off, Allen wrote in the book.

In an interview that will air on 60 Minutes this weekend, Allen defended his book and told Lesley Stahl that it was nothing but a look at the early days of Microsoft and how his and Gates' ideas shaped the multi-billion dollar tech giant. The memoir doesn't just focus on Microsoft -- is also about other ideas Allen has had over the years.

It's not about [revenge]. I just felt it was like an important part of technology history and I should tell it like it happened, Allen told Stahl. I hope people understand and respect that.

Allen told Stahl he didn't feel the need to apologize; and he hasn't talked with Gates about the book. The book will be available April 19.

While my recollection of many of these events may differ from Paul's, I value his friendship and the important contributions he made to the world of technology and at Microsoft, Gates said in a statement reported by The Seattle Times.

Microsoft did not respond to an inquiry for comment.

Credit: CBS

Bill Gates Cancer Software Microsoft