Windows Server 2008 Which Version

I have a question about PDM Server, SolidWorks NetworkLicense Manager, and PDM Web Contributor. We're currently runningPDM Sever and SolidWorks Network License Manager, and PDM WebContributor on a Windows Server 2008 32bit Standand Edition SP1. Asof right now we've had no issues getting PDM Server, SolidWorksNetwork License Manager, and PDM Web Contributor working,everythings been working great. We did however have to install anIIS role in order to get our PDM Web Contributor to work. No bigdeal though. My question is, is we need to upgrade the OS of thisserver. You see our server is a Dell PowerEdge 2950 Dual Quad Corewith 16GB of RAM. Windows Server 2008 32bit Standard Edition willonly use 4GB of RAM according to Microsoft. So we have a couple ofoptions, upgrade to Windows Server 2008 64bit Standard Edition, orWindows Server 2008 32bit or 64bit Enterprise Edition, or possiblyeven Windows Server 2008 32bit or 64 bit Datacenter Edition. Nowlast I heard SolidWorks was not yet supporting Windows Server 2008.Any editions for that matter. Is this still true? If not whatversion of Server 2008 does PDM Server, SolidWorks Network LicenseManager, and PDM Web Contributor work well with? Our parent compnaywould like to convert all the servers to a 64bit OS, so I'mthinking where going to want to put a 64bit OS on this server. Wejust need to make sure that PDM Server, SolidWorks Network LicenseManager, and PDM Web Contributor are going to work in a 64bitServer 2008 environment. Any help on this subject would be greatlyappreciated. Thanks

Sorry by the way we're using SolidWorks 2009 SP3.0SolidworksAdministration