HP Enterprise Services and Microsoft have signed a four-year partnership to deliver Microsoft’s communications and collaboration applications via global private and public cloud services.

Under the agreement, HP and Microsoft will offer private and public cloud offerings designed to help organisations scale new users, shift IT resources from maintenance to innovation and change IT from a capital to operating expense.

The private and public cloud offerings include private cloud including, HP Enterprise Cloud Services for messaging, collaboration and real-time collaboration deliver Microsoft Exchange Server 2010, Microsoft SharePoint Server 2010 and Microsoft Lync Server 2010 productivity applications as a service from HP datacenters around the world.

In addition, the offerings also include a public cloud, including Microsoft Office 365, Microsoft’s Office collaboration and productivity tools, will be delivered by Microsoft through the cloud.

HP will resell Microsoft Office 365 with HP Enterprise Cloud Services including, messaging, collaboration and real-time collaboration.

P and Microsoft engineering resources will collaborate to deploy, support and enhance the these new offering.

HP Enterprise Services Workplace Services vice-president Brandt Faatz said large organisations, particularly those in regulated industries like financial services and public sector, have demanding functionality and service level requirements.

"HP and Microsoft help meet these needs with a flexible range of global, cost-efficient, cloud-based productivity solutions running on the latest technology," said Faatz.

Microsoft Enterprise Partner Group vice-president Mark Hill said Microsoft is committed to putting the unique and ever-evolving needs of customers at the core of cloud innovation.

"This alliance with HP not only broadens Microsoft’s geographic reach, it gives customers maximum flexibility to choose a cloud computing solution that meets their organization’s specialized messaging and collaboration need," said Mark.