O'Rourke says the private cloud building tool is complementary, rather than competitive, to VMware because it can work with the VMware ESX hypervisor. Microsoft will also show off a lab management feature in Visual Studio 2010 that can work both with Hyper-V and VMware.
In terms of Azure, O'Rourke says, "Windows Azure is not a competitive product since VMware does not have a public cloud offering like Azure."
The week of VMworld is probably the biggest all year in terms of virtualization vendors issuing press releases for new products. Even Citrix, one of VMware's top rivals, unveils brand-new technology at VMworld, but Microsoft typically abstains. The Visual Studio lab management feature will become generally available the week of VMworld but it was already announced weeks ago.
"We'll be talking about that [at VMworld] because it's a complementary technology," O'Rourke says.
The stance is slightly changed from last year, when Microsoft said it would not showcase System Center Virtual Machine Manager "or any other products" at VMworld.
Although Microsoft works with VMware on technical support for customers, and uses a VMware API to integrate management software with ESX, Microsoft has still not joined VMware's official partner program. "We considered it but haven't really found an opportunity that makes sense to do so," he says.
But, he says, because of Microsoft's other collaborations with VMware the company could still be considered an "ISV partner" to VMware.