To get ESM for Exchange 2003 to work on BOTH Windows 7 32 bit and 64 bit OS flavors, perform the following:

1. Download and install RSAT Tools for Windows 7 (Remote Server Admin Tools) here, select x86 (x86fre_GRMRSAT_MSU.msu) or x64 (amd64fre_GRMRSATX_MSU.msu) depending on what flavor of Windows 7 you are using – http://www.microsoft.com/downloads/en/details.aspx?FamilyID=7d2f6ad7-656b-4313-a005-4e344e43997d&displaylang=en

2. Download Exchange System Manager for Windows Vista here (ESMVISTA.EXE) but don’t install it yet (see step 3) – http://www.microsoft.com/downloads/en/details.aspx?familyid=3403d74e-8942-421b-8738-b3664559e46f&displaylang=en

3. Do a silent install of ESM. This circumvents the OS check and allows you to install ESM for Vista on Windows 7. You can do this by opening a command prompt and typing this in the directory you downloaded ESMVISTA.MSI to:

ESMVISTA.MSI /q

4. If you are using Windows 7 x86, you are done and you can open up Active Directory Users and Computers (ADUC) and you will see the Exchange tabs for your users.

5. For Windows 7 x64, it’s a little tricky. It just won’t display Exchange tabs in ADUC when you open it. It took my some trial and error for a few hours before I figured it out. You have to run an MMC snapin in 32 bit mode to get the tabs to work. You can do this by opening a run prompt and typing:

mmc /32

then adding the “Active Directory Users and Computers” snap-in (should be the 3rd option). I am thinking this is because the ESM for Vista package was not designed for x64 and some level of compatibility is missing. Evidence for this is that if you check the target for the ESM or ADUC shortcuts, you will see this which clearly shows it’s installed in the x86 Program Files folder:

C:\Program Files (x86)\Exchsrvr\bin\exchange system manager.msc
C:\Program Files (x86)\Exchsrvr\bin\users and computers.msc

Now the problem is that everytime I added the ADUC snapin in an MMC window, the text for it would disappear and I would get an error saying “MMC cannot initialize the snap-in” followed by the MMC crashing. I checked the application event log and found the following:

Faulting application name: mmc.exe, version: 6.1.7600.16385, time stamp: 0x4a5bc3f1
Faulting module name: ntdll.dll, version: 6.1.7600.16559, time stamp: 0x4ba9b29c
Exception code: 0xc0150010
Fault offset: 0x0008454b
Faulting process id: 0x98c
Faulting application start time: 0x01cb970a650fbae3
Faulting application path: C:\Windows\SysWOW64\mmc.exe
Faulting module path: C:\Windows\SysWOW64\ntdll.dll
Report Id: aac5fead-02fd-11e0-9946-005056b64915

So obviously a core Windows 7 x64 system file is the culprit, ntdll.dll. Luckily, there is a release candidate for Windows 7 SP1 available for download here (windows6.1-KB976932-X64.exe):

http://www.microsoft.com/downloads/en/details.aspx?FamilyID=c3202ce6-4056-4059-8a1b-3a9b77cdfdda

I assumed that the service pack might fix whatever the issue was with ntdll.dll since it is a core system file. Turns out I was right, after installing Windows 7 SP1, I can now successfully open an MMC window in 32 bit mode and add the ADUC snapin. Now all my Exchange tabs show up in ADUC (Exchange General, E-mail Addresses, Exchange Features, & Exchange Advanced). See screenshot below:

Now I’m not advising you deploy a release candidate service pack into your environment. But for systems admins, we typically have a bit more leeway on our systems than end users so if you are under no policy restricting installing a release candidate on your workstation, then go for it. You can even install it in a VM temporarily until SP1 is released so you don’t have to jeopardize your workstation with an RC build. Let me know how it works out for you!

How to make ESM tabs for Exchange 2003 work for ADUC on Windows 7 x64 and x86 is a post from: JasonSamuel.com

More of my posts you might like:

1. Exchange 2003 spam filtering made easy

I was lucky enough to attend the Microsoft New Efficiency event for Windows Server 2008 R2 on Monday.  It was a limited capacity technical briefing aimed at IT Professionals.  They also had an Exchange 2010 and Windows 7 track at the same time but I chose to attend the Server 2008 R2 track.  It was divided into 4 sections and was hosted by Kevin Saye (kevin.saye@microsoft.com) who is the Pre-sales technical support specialist for Windows Server in this region.  I’ve heard him speak at events before but never had a chance to actually do a QA session with him till now.

So, on to the new stuff in Server 2008 R2 that I found interesting!  This is not a comprehensive list by an means, just the stuff I thought was very useful.  I’ll go over each in detail in the coming days and how it will fit into your enterprise environment.

-Active Directory Administrative Center (ADAC)
-Managed Service accounts
-Active Directory Recycle Bin
-Graphical PowerShell
-Turning off CPU cores to conserve power
-Group policy can now execute Powershell scritpts
-Group policy granularity through item level targeting
-FCI to classify data and take actions on it
-.NET now runs on Server Core installs
-Remote Desktop Services now has multi-monitor support (up to 8 monitors), bi-directional audio (useful for VOIP), and enhanced multimedia support using your local graphics card instead of “screen painting” as it was before.
-DirectAccess with Windows 7 and Server 2008 R2 – Extends the network to include remote users instead of just a remote user dialing in via VPN.  Uses the Teredo protocol.  Was able to access the Microsoft intranet site (http://msw) without ever having to dial in and from behind a corporate firewall.  It uses IPsec and it only works with Windows 7 machines which are on the domain. 
-Branch Cache – Caches only the requested data unlike DFS.  Means a lot less space is required unlike DFS which is an exact duplicate.

THE FUTURE
Kevin says expect to see more componentization in MS products.  Expect to moved vhds around on servers like OS, Apps, & Data vhds interchangeably on your VMs.

What’s new and actually useful in Server 2008 R2? is a post from: JasonSamuel.com