This poster provides a visual reference for understanding key Remote Desktop Services technologies in Windows Server 2008 R2. It explains the functions and roles of Remote Desktop Session Host, Remote Desktop Virtualization Host, Remote Desktop Connection Broker, Remote Desktop Web Access, Remote Desktop Gateway, RemoteFX and Remote Desktop Licensing.
To Download: Click on the picture.
The Hyper V documentation team has done a great job of putting together a detailed Windows Server 2008 R2: Hyper-V Component Architecture Poster. Download the .PDF
The poster provides details on the inner workings of things like:
Error: 
The KMS host that is used is very probably a Windows Server 2008 KMS host that cannot standard activate Windows 7 and 2008 R2 machines.
When you do not have Windows Server 2008 R2 KMS host key have then you must have a Volume License agreement so that your request your Windows 7 and Windows 2008 R2 kms keys.
Resolution
Step 1:
-If the KMS host a Windows Server 2003 SP2 machine is you have the update from the KB article KB968915 install and restart the machine.
-If the KMS host a Windows Server 2008 SP2 machine is you have the update from the KB article KB968912 install and start the new machine.
-If the KMS host one Windows Server 2008 R2 machine is you have to install any further update.
Step 2:
You the new KMS host key import now. The commands are as follows:
1. Uninstall KMS license Key on host – slmgr.vbs /upk
2. Install Windows Server 2008 R2 KMS license key – slmgr.vbs /ipk <Your Key>
3. Activate KMS server online: slmgr.vbs /ato
4. Net Stop slsvc
5. Net Start slsvc
The clients can now activate
When you plan to use to upgrade your DFS domain namespace to 2008 Mode there are some requirements:
- The forest uses the Windows Server 2003 or higher forest functional level
- The domain uses the Windows Server 2008 or higher domain functional level
- All namespace servers are running Windows Server 2008 or (2008 R2)
1. Installing latest DFS Hotfix on servers where Distributed File System (DFS) technologies is installed
2. Dfsutil root export \\domain\namespace path\filename.xml
3. Remove all Namespace Servers
4. Dfsutil root remove \\domain\namespace
5. Dfsutil root adddom \\server\namespace v2
6. Dfsutil root import merge path\filename.xml \\domain\namespace
7. Add all Namespace servers
8. Tuning replication performance in DFSR (especially on Win2008 R2)
Just like any other operating system, over time, a disk will become fragmented. Virtual machines are no different. The time that it takes for a disk to become fragmented depends on what data is being added to and removed from the virtual machine hard drive.
Why use MyDefrag instead of the standard Windows defragger?
When you run MyDeFrag.exe with /verysilent it detect automatically the OS and then install x86 or x64 version from MyDefrag. It’s always installed at c:\program files. You can deploy it with MDT 2010 automatically when installing the OS. Or run it from a network share.
You can use Group Policy Preferences to schedule it. 
Update for Best Practices Analyzer for HYPER-V for Windows Server 2008 R2 x64 Edition (KB977238) You can use Hyper-V Best Practices Analyzer to scan a server that is running the Hyper-V role, and help identify configurations that do not comply with the best practices of Microsoft for this role.
Update for Best Practices Analyzer for DHCP Server for Windows Server 2008 R2 x64 Edition (KB977236) You can use DHCP Best Practices Analyzer to scan a server that is running the DHCP role and help identify configurations that do not comply with the best practices from Microsoft for this role.
Update for Best Practices Analyzer for Network Policy and Access Services for Windows Server 2008 R2 x64 Edition (NPAS) (KB977239) You can use the Network Policy and Access Services update for Best Practices Analyzer to scan a server that is running one or more of following the role services: Network Policy Server, Health Registration Authority, and Routing and Remote Access Service.
Update for Best Practices Analyzer for File Services for Windows Server 2008 R2 x64 Edition (KB981111) You can use File Services Best Practices Analyzer to scan a server that is running the File Services role and one or more of following role services: DFS Namespaces, DFS Replication, File Server, File Server Resource Manager, Services for Network File System.
Update for Best Practices Analyzer for Active Directory Rights Management Services for Windows Server 2008 R2 x64 Edition (KB981391) You can use Active Directory Rights Management Services Best Practices Analyzer to scan a server that is running the AD RMS role and help identify configurations that do not comply with the best practices of Microsoft for this role.
Update for Best Practices Analyzer for Windows Server Update Services for Windows Server 2008 R2 x64 Edition (KB981390) You can use the Windows Server Update Services (WSUS) update for Best Practices Analyzer to scan a server that is running WSUS.
Update for Best Practices Analyzer for Application Server for Windows Server 2008 R2 x64 Edition (KB981392) You can use the Application Server update for Best Practices Analyzer to scan a server
|
Knowledge Base Article |
Name |
Date |
Required? |
|
“You receive a "Stop 0x0000007E" error on the first restart after you enable Hyper-V on a Windows Server 2008 R2-based computer” |
10/1/2009 |
Yes, if you encounter this error and your server uses a “C-state” (lower power state) that is supported by the processor, but is not supported by Hyper-V. |
|
|
“The network connection of a running Hyper-V virtual machine is lost under heavy outgoing network traffic on a Windows Server 2008 R2-based computer” |
10/21/2009 |
No. |
|
|
“A Hyper-V update rollup package is available for a computer that is running Windows Server 2008 R2” |
11/10/2009 |
Yes, if you are running a backup or restore solution. |
|
|
“Stop error message on an Intel Xeon 5500 series processor-based computer that is running Windows Server 2008 R2 and that has the Hyper-V role installed: "0×00000101 – CLOCK_WATCHDOG_TIMEOUT" |
11/20/2009 |
Yes, if you are running Hyper-V on the affected hardware. |
|
|
“Virtual machines stop responding (hang) during startup and the Vmms.exe process crashes on a Windows Server 2008 R2 computer that has the Hyper-V role installed“ |
10/14/2009 |
No. |
|
|
“MS10-010: Vulnerability in Windows Server 2008 Hyper-V could allow denial of service” |
2/9/2010 |
Yes. |
|
|
“Stop error in Windows Server 2008 R2: "0x000000CA PNP_DETECTED_FATAL_ERROR"” |
3/12/2010 |
Yes, if you store VHDs on non-PNP disks. |
|
|
“The computer stops responding or restarts during the Hyper-V Live Migration process in Windows Server 2008 R2” (relates to AMD Errata 383) |
3/27/2010 |
Yes, if you are running Hyper-V on AMD processors. |
|
|
“Network connectivity for a Windows Server 2003-based Hyper-V virtual machine is lost temporarily in Windows Server 2008 R2” |
4/28/2010 |
Yes, if the server running Hyper-V has a virtual machine that is running Windows Server 2003. |
|
|
“"STOP: 0x0000001a" error message on a computer that has an Intel Westmere processor together with the Hyper-V role installed on Windows Server 2008 or on Windows Server 2008 R2” |
5/5/2010 |
Yes, if you are running Hyper-V on Intel Westmere processors. |
Source: http://technet.microsoft.com/en-us/library/ff394763(WS.10).aspx
I want to creat a new mailbox for a new user. But i get the following error: The exchange server address list service failed to respond. 
Solution:
Go to Organization Configuration in EMC. Right click it in EMC and select Modify Configuration Domain Controller. Point it to your DC hosting the PDC
After that restart the Microsoft Exchange System Attendant services on the mailbox server.
The Microsoft Exchange System Attendant Service does the following thing:
Forwards directory lookups to a global catalog server for legacy Outlook clients, generates e-mail addresses and offline address books, updates free/busy information for legacy clients, and maintains permissions and group memberships for the server. If this service is disabled, any services that explicitly depend on it will fail to start.
Error:
Starting test: NCSecDesc
Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn’t have
Replicating Directory Changes In Filtered Set
access rights for the naming context:
DC=ForestDnsZones,DC=ad,DC=local
Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn’t have
Replicating Directory Changes In Filtered Set
access rights for the naming context:
DC=DomainDnsZones,DC=ad,DC=local
……………………. DC2008-03 failed test NCSecDesc
Oplossing:
adprep /rodcprep draaien
