I installed the new BizTalk Server 2010 Developer Edition, released a couple of days ago, on a Windows Server 2008 R2 virtual image. The installation went very smoothly, but I did notice one problem. Initially I attempted to upgrade the beta version of BizTalk Server. Brian Loesgen reports that this worked OK for him. However, I couldn't do this. The installer reported that upgrade from the Enterprise Edition to the Developer Edition is not supported. I attempted to uninstall the beta, but got an error message which left my installation in an invalid state.
Fair enough. You have to expect this sort of problem when using betas. That’s one good reason for using virtualisation.
I installed the RTM Developer Edition on a fresh image, and as I say, everything went very smoothly. However, I tried re-running the BizTalk installer and, to my dismay, got a rude message saying:
Cannot uninstall or modify the Dev. edition of BTS 2010
Setup has detected that the Enterprise Edition of BizTalk Server 2010 was installed. Upgrading from the Enterprise Edition to the Developer Edition is not supported.
Please uninstall the Enterprise Edition and then run Setup again.
This is simply not true. This was a completely fresh build of Windows Server on which I have only installed the Developer Edition. I have not tried uninstalling BizTalk to see what happens.
So, be careful with the Developer Edition. My experience is that there is a problem with the installer.
[UPDATE 28/09/2010] Rahul, from MS, is looking into the issue. Meanwhile, early indications are that others are not experiencing the same problem. Thiago Almeida kindly experimented, and was able re-run setup. He is using Windows 7 Enterprise whereas I am using Windows Server 2008 R2. Also, he built a 32-bit installation using WinVPC wheras I built a 64-bit installation using VirtualBox (WinVPC can't run 64-bit images). Meanwhile, over on Connect, Johan Hedberg, reports that things worked OK for him on a 64-bit Windows 7 machine. He uninstalled the beta and then installed the RTM of the Dev edition, and can re-run setup OK. Jan Eliasen has also reported that things work OK on a 64-bit VMWare image running the same combination of software I am using.