Yes you should still be able to do this. I don't think you can purchase
Exchange 5.5 anymore, but if you have a boxed version of Exchange 2000
Enterprise, the Exchange 5.5 Enterprise CD should be in there as well.
Just put the CD in, select 'reinstall' and reapply your service pack / post
Service Pack hotfixes. That should be it.
170280 XADM: Upgrading From Exchange Server Standard Edition to the
Muhammed Ismail, MCSE, MCAD
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> Is this still technically possible - I'm sure I'll have to pay to upgrade
> the Exchange 2000 enterprise - no problem - but technically, can I still
> upgrade my working version of 5.5 standard to the enterprise version - my
> is about 14.5GB and I should probably bite the bullet soon. If the answer
> is yes - how? Will it be a new install over the old, a registry