Why should Exchange 2003 server not be installed on Windows 2000?
Reply 1)
Windows 2000 or with sp2 is not equal to Win 2003. To take full advantage and functionality of xchange 2003 you must run it on win 2003. Following is the list of feature of xchange 03 which are only supported on win 03 and not on win 2000.
@ Mount points overcome the 24-drive letter limitation of previous version of windows.
@ Volume shadow copy service for database backup
@ IPSec support for front and back end cluster
@ Cross-forest Kerberos authentication with MS Outlook 03
@ IIS 6 enhanced security and dedicated application mode
@ HTTP access from Outlook 2003
@ Real-time collaboration
@ Microsoft SharePoint Portal Server Web Part
List of function supported only when xchange 03 installed on win 03
@ Support 8-way PIII Xeon Processor
@ Support 8-way P4 XeonMP Processor (Hyper Threaded)
@ Up to 8-node Clustering
@ Mount Point Support.
For more information refer Book 70-284.
Reply 2)
Exchange 2003 requires IIS Version 6 where as in Windows 2000 has IIS Version 5. If you have Windows 2000 with SP3 or later you can install Exchange 2003 on that server.
Reply 3)
Both Exchange 2000 and Exchange 2003 rely heavily on Internet Information Services (IIS) in the Windows Server operating system for all Internet-based protocol services. For Windows Server 2003, IIS was extensively reengineered in accordance with industry best practices for increased system security. IIS in Windows Server 2003 now has two different modes: IIS 6.0 mode and IIS 5.0 compatibility mode. Improvements in IIS 6.0 include new fault tolerance that isolates applications in their own memory space and better protection against spam by disabling Internet Server Applications Programming Interfaces (ISAPI) by default. Additionally, IIS is not installed by default when running setup for Windows Server 2003; it is “locked down” to maximum security when selected for first installation on a server. These architectural design changes to IIS fundamentally change how Exchange and other applications utilize IIS in Windows Server 2003.
With approximately 350 code changes in Windows Server 2003 that affected Exchange, Microsoft determined that it would better benefit our customers to focus development efforts on Exchange 2003 to take full advantage of the new improvements in IIS 6.0, rather than on updating either version of Exchange to run on Windows Server 2003 in IIS 5.0 compatibility mode or Exchange 2000 to work with the new architecture in IIS 6.0. As a result, Exchange 2000 needs to be physically installed on a server running Windows 2000 with Service Pack (SP) 3 to coexist in a Windows Server 2003 environment. Exchange 2003 is fully supported on both Windows 2000 Server and Windows Server 2003 running IIS 6.0.
Reply 4)
Perfect guys, Nilesh mentioned below ‘HTTP access from Outlook 2003’. In case, someone did not understand what is this, it is RPC over HTTP which needs Exchange 2003 to be installed on Windows 2003.
Reply 5)
When I saw this mail from Nilesh, I got really impressed with the searching skills of Nilesh.
Keep up the spirit guys. This discussions are now getting really very informative.
I am enjoying it.
Only one question from my side..
What role IIS 6.0 plays here? Is really IIS6.0 is required to install Exchange 2003 ?
Or it just needs the IIS services running ? 5.0 / 6.0
Please help me to understand this better.
Thanking you all.
Reply 6)
What role IIS 6.0 plays here?
Answer: The following features are available in Exchange 2003 only with IIS 6
1) Exchange 2003 runs in IIS 6.0 as a ‘Worker Process’. What this means is, in case another process or a website on the same IIS server crashes, Exchange 2003 functionality is not impacted.
2) RPC over HTTP will NOT be available with IIS 5.0 since it is a feature of IIS 6.0
Is really IIS 6.0 is required to install Exchange 2003 ?
Answer: No. Exchange 2003 can run on IIS 5.0 as well, but will need .Net Framework and ASP.net to be installed. This is installed automatically during the Exchange 2003 setup on a Windows 2000 server. Refer http://technet.microsoft.com/en-us/library/bb124295.aspx
Or it just needs the IIS services running ? 5.0 / 6.0
Answer: If you are happy with losing out the points mentioned in Answer 1 above, Exchange 2003 can very well run on the HTTP, NNTP and ASP.net services provided by IIS 5.0. Refer to http://articles.techrepublic.com.com/5100-6345_11-5035139.html
Guys, please add more points if relevant. Thanks!
Windows 2000 or with sp2 is not equal to Win 2003. To take full advantage and functionality of xchange 2003 you must run it on win 2003. Following is the list of feature of xchange 03 which are only supported on win 03 and not on win 2000.
@ Mount points overcome the 24-drive letter limitation of previous version of windows.
@ Volume shadow copy service for database backup
@ IPSec support for front and back end cluster
@ Cross-forest Kerberos authentication with MS Outlook 03
@ IIS 6 enhanced security and dedicated application mode
@ HTTP access from Outlook 2003
@ Real-time collaboration
@ Microsoft SharePoint Portal Server Web Part
List of function supported only when xchange 03 installed on win 03
@ Support 8-way PIII Xeon Processor
@ Support 8-way P4 XeonMP Processor (Hyper Threaded)
@ Up to 8-node Clustering
@ Mount Point Support.
For more information refer Book 70-284.
Reply 2)
Exchange 2003 requires IIS Version 6 where as in Windows 2000 has IIS Version 5. If you have Windows 2000 with SP3 or later you can install Exchange 2003 on that server.
Reply 3)
Both Exchange 2000 and Exchange 2003 rely heavily on Internet Information Services (IIS) in the Windows Server operating system for all Internet-based protocol services. For Windows Server 2003, IIS was extensively reengineered in accordance with industry best practices for increased system security. IIS in Windows Server 2003 now has two different modes: IIS 6.0 mode and IIS 5.0 compatibility mode. Improvements in IIS 6.0 include new fault tolerance that isolates applications in their own memory space and better protection against spam by disabling Internet Server Applications Programming Interfaces (ISAPI) by default. Additionally, IIS is not installed by default when running setup for Windows Server 2003; it is “locked down” to maximum security when selected for first installation on a server. These architectural design changes to IIS fundamentally change how Exchange and other applications utilize IIS in Windows Server 2003.
With approximately 350 code changes in Windows Server 2003 that affected Exchange, Microsoft determined that it would better benefit our customers to focus development efforts on Exchange 2003 to take full advantage of the new improvements in IIS 6.0, rather than on updating either version of Exchange to run on Windows Server 2003 in IIS 5.0 compatibility mode or Exchange 2000 to work with the new architecture in IIS 6.0. As a result, Exchange 2000 needs to be physically installed on a server running Windows 2000 with Service Pack (SP) 3 to coexist in a Windows Server 2003 environment. Exchange 2003 is fully supported on both Windows 2000 Server and Windows Server 2003 running IIS 6.0.
Reply 4)
Perfect guys, Nilesh mentioned below ‘HTTP access from Outlook 2003’. In case, someone did not understand what is this, it is RPC over HTTP which needs Exchange 2003 to be installed on Windows 2003.
Reply 5)
When I saw this mail from Nilesh, I got really impressed with the searching skills of Nilesh.
Keep up the spirit guys. This discussions are now getting really very informative.
I am enjoying it.
Only one question from my side..
What role IIS 6.0 plays here? Is really IIS6.0 is required to install Exchange 2003 ?
Or it just needs the IIS services running ? 5.0 / 6.0
Please help me to understand this better.
Thanking you all.
Reply 6)
What role IIS 6.0 plays here?
Answer: The following features are available in Exchange 2003 only with IIS 6
1) Exchange 2003 runs in IIS 6.0 as a ‘Worker Process’. What this means is, in case another process or a website on the same IIS server crashes, Exchange 2003 functionality is not impacted.
2) RPC over HTTP will NOT be available with IIS 5.0 since it is a feature of IIS 6.0
Is really IIS 6.0 is required to install Exchange 2003 ?
Answer: No. Exchange 2003 can run on IIS 5.0 as well, but will need .Net Framework and ASP.net to be installed. This is installed automatically during the Exchange 2003 setup on a Windows 2000 server. Refer http://technet.microsoft.com/en-us/library/bb124295.aspx
Or it just needs the IIS services running ? 5.0 / 6.0
Answer: If you are happy with losing out the points mentioned in Answer 1 above, Exchange 2003 can very well run on the HTTP, NNTP and ASP.net services provided by IIS 5.0. Refer to http://articles.techrepublic.com.com/5100-6345_11-5035139.html
Guys, please add more points if relevant. Thanks!
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1:18 AM
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