TechNet article http://technet.microsoft.com/en-us/library/cc794548(EXCHG.80).aspx says Exchange 2003 runs on "... Virtual Server 2005 R2 or any later version of Microsoft Virtual Server." Of course there are conditions, like the Virtual Machine Additions must be installed and no failover cluster. It does not say anything yes or no about Hyper-V, but I normally expect Hyper-V with integration components and no failover cluster to run almost any application that Virtual Server with Virtual Machine Additions can run. A recent previous posting on a partner forum got an answer quoting the above TechNet article that does not mention Hyper-V and said it's not supported. An MVP replied to that posting that it worked and referenced http://windowsitpro.com/article/articleid/101333/virtualizing-exchange-2007-and-exchange-2003-with-hyper-v.html, which has moved to http://www.windowsitpro.com/article/virtualization/virtualizing-exchange-2007-and-exchange-2003-with-hyper-v.aspx but is only available to members. The TechNet article does not say anything yes, no, or maybe about Hyper-V. Was the TechNet article written before Hyper-V was available? Should it be updated? Does unsupported mean it won't work or it hasn't been rigorously tested? A client is stuck with a lot of Outlook 2000 clients for the next year or two, so they're stuck with Exchange 2003. There is one domain, one Administrative Group, one Routing Group, one server with 75 mailboxes in 9 or 10 GB and no public folders. Can I move that to Exchange 2003 Standard on 32 bit Windows 2003 R2 on Hyper-V and expect it to work?

Yes, you can expect it to work. I can't speak to Microsoft's supportability commitments, however.-- Ed Crowley MVP"There are seldom good technological solutions to behavioral problems.". "Anthony E Scandora Jr" wrote in message news:d5539a0a-438f-4db1-8841-2e560fb245a9... TechNet article http://technet.microsoft.com/en-us/library/cc794548(EXCHG.80).aspx says Exchange 2003 runs on "... Virtual Server 2005 R2 or any later version of Microsoft Virtual Server." Of course there are conditions, like the Virtual Machine Additions must be installed and no failover cluster. It does not say anything yes or no about Hyper-V, but I normally expect Hyper-V with integration components and no failover cluster to run almost any application that Virtual Server with Virtual Machine Additions can run.A recent previous posting on a partner forum got an answer quoting the above TechNet article that does not mention Hyper-V and said it's not supported. An MVP replied to that posting that it worked and referenced http://windowsitpro.com/article/articleid/101333/virtualizing-exchange-2007-and-exchange-2003-with-hyper-v.html, which has moved to http://www.windowsitpro.com/article/virtualization/virtualizing-exchange-2007-and-exchange-2003-with-hyper-v.aspx but is only available to members.The TechNet article does not say anything yes, no, or maybe about Hyper-V. Was the TechNet article written before Hyper-V was available? Should it be updated? Does unsupported mean it won't work or it hasn't been rigorously tested?A client is stuck with a lot of Outlook 2000 clients for the next year or two, so they're stuck with Exchange 2003. There is one domain, one Administrative Group, one Routing Group, one server with 75 mailboxes in 9 or 10 GB and no public folders. Can I move that to Exchange 2003 Standard on 32 bit Windows 2003 R2 on Hyper-V and expect it to work? Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Let me add that you can expect it to work, but you will need to be sure that your Hyper-V host provides adequate resources, especially disk I/O, traditionally the Exchange 2003 (and earlier) performance bottleneck. -- Ed Crowley MVP"There are seldom good technological solutions to behavioral problems.". "Anthony E Scandora Jr" wrote in message news:d5539a0a-438f-4db1-8841-2e560fb245a9... TechNet article http://technet.microsoft.com/en-us/library/cc794548(EXCHG.80).aspx says Exchange 2003 runs on "... Virtual Server 2005 R2 or any later version of Microsoft Virtual Server." Of course there are conditions, like the Virtual Machine Additions must be installed and no failover cluster. It does not say anything yes or no about Hyper-V, but I normally expect Hyper-V with integration components and no failover cluster to run almost any application that Virtual Server with Virtual Machine Additions can run.A recent previous posting on a partner forum got an answer quoting the above TechNet article that does not mention Hyper-V and said it's not supported. An MVP replied to that posting that it worked and referenced http://windowsitpro.com/article/articleid/101333/virtualizing-exchange-2007-and-exchange-2003-with-hyper-v.html, which has moved to http://www.windowsitpro.com/article/virtualization/virtualizing-exchange-2007-and-exchange-2003-with-hyper-v.aspx but is only available to members.The TechNet article does not say anything yes, no, or maybe about Hyper-V. Was the TechNet article written before Hyper-V was available? Should it be updated? Does unsupported mean it won't work or it hasn't been rigorously tested?A client is stuck with a lot of Outlook 2000 clients for the next year or two, so they're stuck with Exchange 2003. There is one domain, one Administrative Group, one Routing Group, one server with 75 mailboxes in 9 or 10 GB and no public folders. Can I move that to Exchange 2003 Standard on 32 bit Windows 2003 R2 on Hyper-V and expect it to work? Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hi Anthony, Maybe it's working, but it's not official supported. Thanks, Elvis