INTRODUCTION
Kernel memory resource bottlenecks can drastically limit Exchange 2003 scalability. Kernel resource usage may vary greatly from one Exchange server to another. A hardware...
Published Dec 07, 2005
Version 1.0
Blog Post
Dimitri and Vytas,
Thanks for bringing this up, as it should be mentioned.
The "support" of /3gb on W2003 Standard has gone back and forth (which does not make it easy, I know) - but in the end, it is supported in the following way:
"We support the use of the /3GB switch in Microsoft Windows Server 2003 Standard Edition in a production environment for use by Active Directory. Microsoft Exchange Server 2003 is supported in a production environment when you use this functionality. Otherwise,
the /3GB switch in Windows Server 2003 Standard Edition is only for development and testing purposes."
This is from:
328882 Exchange memory use and the /3GB switch
http://support.microsoft.com/default.aspx?scid=kb;EN-US;328882
Dimitri, even the article that the blog post you point to links to has been updated since the blog post was made so W2003 Standard is listed as a supported platform for it.