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<a href="http://support.microsoft.com/kb/932600" rel="ugc nofollow">http://support.microsoft.com/kb/932600</a><br />
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However, I am upgrading a W2003 Standard server to W2003 R2. &nbsp;Should I try removing SPk 2?
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http://support.microsoft.com/kb/932600

However, I am upgrading a W2003 Standard server to W2003 R2.  Should I try removing SPk 2?

Setup cannot continue because the version of Windows on your computer is newer than the version on the CD.

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).