I installed and have been playing with SQL 2008 on a server. My company is going to go ahead with 2008 and so I wanted to upgrade my SQL 2005 Developer Edition to 2008 on my pc. I get a message that "SQL Server 2008 Feature Upgrade" failed.

According to this the developer edition should upgrade. Or am I misreading it?

My version is Microsoft SQL Server 2005 - 9.00.3073.00 (Intel X86) Aug 5 2008 12:31:12 Copyright (c) 1988-2005 Microsoft Corporation Developer Edition on Windows NT 5.1 (Build 2600: Service Pack 3).

I'm trying to install from here

What am I missing?

I'm trying to install from here

This link is the 'Microsoft® SQL Server® 2008 Enterprise Evaluation', a 180 days free trial software.

This is not the developer edition. The developer edition costs ~ 50 Euro, so you need the 2008 - developer edition (may also cost 50 Euro / $).

The 180-day - version can be used to test the software without buying something. It expires. Your 2005 developer edition does not expire.

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