I assume there must be a way to do this as: http://blogs.technet.com/b/exchange/archive/2010/01/08/3409154.aspx seems to say it is a supported scenario.
Basically what I'm trying to do is use the Exchange 2010 admin tools on a Windows 2008 R2 server to admin an Exchange 2007 SP3 server that is installed on Windows 2003 (x64).
Before anyone says I should use the Exchange 2007 admin tools, I can't, I need to use the export-mailbox command to export to a PST, that is only supported in 2007 on 32-bit computers and there aren't any in the domain. That article says you can do it using the Exchange 2010 admin tools.
I get all kinds of WinRM error messages trying to connect using EMS 2010 to the mail server. First of all I got a 403 error message, the support article says this is to do with SSL being enabled on the Powershell virtual directory but there isn't one, because it's Exchange 2007. Then after I disabled SSL on the default website I got: "The WinRM client sent a request to an HTTP server and got a response saying the requested HTTP URL was not available." The support article for that blathers on about HTTP bindings which is not relevant.
I'm obviously missing something that allows the 2010 tools to communicate with the 2003/2007 server, anyone care to illuminate me? This is a supported scenario, that article goes on about using the Exchange 2010 tools to communicate with an Exchange 2003 Server, this is not as exotic as that.