Upgrade Path to Windows Server 2003 and Citrix Presentation Server 4.5

I have a Windows 2000 Server running Citrix MetaFrame XP that I am going to upgrade to Windows Server 2003 and Citrix Presentation Server 4.5.  Should I upgrade first to Windows Server 2003 and then to Citrix Presentation Server 4.5 or should I upgrade first to Citrix Presentation Server 4.5 and then to Windows Server 2003?
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see here for some upgrade steps that actually worked to upgrade from 2000 to 2003.  Keep in mind this was only an OS upgrade and wouldn't include the steps needed to take to migrate from MetaFrame XP to PS 4.5.  This was created by an actual Citrix tech support case:


also make sure to read the migration steps for 4.5 in the Admin guide here:

Good luck, I hope everything goes well for you!
I don't think you can/should do either.  If this is even possible the amount of time spent fixing all the potential problems would take way longer than if you wiped out the server and did a fresh install of 2003 server and PS 4.5

1. Presentation Server 4.5 will not run on Windows 2000 Server so that is not an option to upgrade citrix first.

2. I'm don't think an OS upgrade is supported (trying to find documentation about that now) but would surely crash your farm if you tried.

The best option (and most likely the only option) is to do a clean install of 2003 server and then install Citrix PS 4.5
karinerivetAuthor Commented:
We don't have a farm; we have only a single Citrix server.  And, it's a week long process to build the server out from scratch because I spent a lot of time customizing our applications and profiles so I really don't want to have to go through that process again.

I know that from an OS perspective upgrading from Windows 2000 to 2003 is fully supported.

If I complete all of the steps in the same session, i.e. upgrade to Windows 2003 and immediately upgrade to Citrix 4.5, without attempting to use the Citrix functions in between wouldn't that work?
karinerivetAuthor Commented:
Thank you for the article links.  Given that we're currently running Windows Server 2000 with SP4 and Citrix MetaFrame XPs with Feature Release 3 and based on the content of the articles it looks like I can take the following approach:

1. Upgrade to Windows Server 2003 with SP1.
2. Upgrade to Citrix Presentation Server 4.
3. Upgrade to Citrix Presentation Server 4.5.

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