Microsoft has extended its pact with Linux distributor Xandros.
Xandros has created a Linux distribution based on Debian for both desktops and servers. It also sells Scalix open-source mail servers, having acquired the company in July.
The pact is one of a series of agreements between the software giant and Linux companies, all aimed at bolstering interoperability between Microsoft's proprietary software and open-source alternatives.
Xandros' deal with Microsoft, which was inked in June, originally focused on improving interoperability between their servers to make it easier for IT professionals to manage both sets of systems.
On Wednesday, the two companies said they would extend that deal to help customers deploy Windows-based wireless email offerings using Scalix servers.
Xandros will develop a server-side implementation of Exchange ActiveSync to enable wireless synchronisation without having to install third-party software.
Windows Mobile-based email has become increasingly popular as Microsoft tries to tap into a lucrative marketplace in which BlackBerry maker RIM still holds a monopoly.
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"With the ubiquity of Windows Mobile-based smartphones, this agreement will enable us to provide the same range of Scalix connectivity choices for users of desktop, laptop and handheld devices that they currently enjoy with Microsoft Exchange," said Xandros's chief executive, Andreas Typaldos.
The two protocols which Xandros will license are Exchange ActiveSync and the Outlook-Exchange Transport Protocol. Xandros says it will release the first results from its use of the protocols in six to 12 months.
As part of its agreements with Linux vendors, Microsoft has said that it won't sue customers of those companies.
For users of other open-source vendors — the largest of which is Red Hat — Microsoft says it will not sue for now.
Talkback
Interoperability will be great, if M$ would stop trying to destroy Linux. But, mixing the two will more likely reduce the security of Linux. Imdemnifying Xandros is a laugh, because if M$ knows that Linux contains M$ code, then prove it instead of spreading FUD. Fear makes people do strange things, and it appears that M$ is scared to death of Linux, because M$ knows Linux is a superior OS.