Let’s start with some easy stuff..

Get the number of Public Folders

Get-PublicFolder -Recurse | Measure-Object

Get the sum / number of Mails / Object in all Public Folders

Get-PublicFolderStatistics | Measure-Object -Property ItemCount -Sum

Get the number of Mailboxes

Get-Mailbox | Measure-Object

Get the number of sent messages / emails within a date range

Get-MessageTrackingLog -Start "29.11.2009" -End "30.12.2009" -ResultSize Unlimited | Measure-Object

Ok, the goal is to have a 1gb large dummy file ..

first we declare a string variable called file:

PS C:\> $file = "$env:temp\dummyFile.txt"

no we create on object of type Io.File
PS C:\> $objFile = [io.file]::Create($file)

on the object, we call the void SetLength parameterized with 1gb 
PS C:\> $objFile.SetLength(1gb)

no we call the close method and the file is written
PS C:\> $objFile.Close()

using get-item $file we list the file we just created:

PS C:\> Get-Item $file Directory: C:\Users\<removed>\AppData\Local\Temp

Mode                LastWriteTime     Length Name
----                -------------     ------ ----
-a---        13.03.2010     14:07 1073741824 dummyFile.txt

PS C:\>

Ok, finally we can call an ii (Invoke-Item) to open the Path where the dummyFile resides in Windows Explorer.

To get the Path from a File, we can use Get-ChildItem (Get-ChildItems returns a FileInfo Object/Class). This object has a DirectoryName Property.

We declare an Object $path

$path = Get-ChildItem $file

Finally we call the mentioned ii (Invoke-Item) to open the path in Windows Explorer.

ii $path.DirectoryName

The complete Script

$file = "$env:temp\dummyFile.txt"
$objFile = [io.file]::Create($file)
$objFile.SetLength(1gb)
$objFile.Close()
$path = Get-ChildItem $file
ii $path.DirectoryName

The tool used to configure HTTP settings depends on the operating system the computer is running.

When running Windows Server 2003 or Windows XP, use the HttpCfg.exe tool. With Windows Server 2003 this tool is installed. With Windows XP, you can download the tool at Windows XP Service Pack 2 Support Tools. For more information, see Httpcfg Overview.

With Windows Vista, you configure these settings with the Netsh.exe tool.

However, before you try running a Console Application or Windows Service application that hosts a WCF service with basicHttpBinding or wsHttpBinding, see this MSDN article about "Configuring HTTP and HTTPS". If you are WAS-hosted or Web App-hosted, the urlacl entries are made on your behalf.

You can view the current entries with "netsh http show urlacl". To make the changes, you’ll need to "Run as Administrator" when going into your Command Prompt.

I decided to use the following command:

netsh http add urlacl url=http://+:8080/ user=\Everyone

You should adjust the ports and/or path as necessary for your situation:

netsh http add urlacl url=http://+:8080/MyConsoleAppHostedService user=DOMAIN\user netsh http add urlacl url=http://+:8091/MyWindowsServiceHostedService user=\SYSTEM

to delete an urlacl do:

delete urlacl url=https://*:8172/

Links

Configuring HTTP and HTTPS on Microsoft MSDN

Netsh Commands for Hypertext Transfer Protocol on Microsoft Technet

If you have jobs that need to execute regularly, you can manage them with a PowerShell script and make it a scheduled task:

To create a scheduled task do.

schtasks /CREATE /TN CheckHealthScript /TR "powershell.exe -noprofile -executionpolicy Unrestricted -file %public%\checkhealth.ps1" /IT /RL HIGHEST /SC DAILY

To get a list of scheduled tasks / enumerate scheduled tasks do:

schtasks /query

Links

Running PowerShell Scripts as Scheduled Task

About Scheduled Tasks on MSDN

About Scheduled Tasks on Technet

Script to enumerate / list scheduled tasks on a list of servers..

$Version="v8.4.28 Aaron Dodd"
$Description="Generate CSV of scheduled tasks in the environment"

#------------------------------------------------------------------------------
# Process tasks
#------------------------------------------------------------------------------
ForEach ($Server in $ServerList) {
schtasks /QUERY /S $Server.Name /FO CSV /V > $TempReport
$TempCsv += Import-Csv $TempReport
}
Remove-Item $TempReport
$TempCsv | Export-Csv $FinalReport -notype
#----------------------------------------------------------------

found here => http://blog.geekpoet.net/2008/04/powershell-script-to-report-on-all.html

PowerPivot gives users the power to create compelling self-service BI solutions, facilitates sharing and collaboration on user-generated BI solutions in a Microsoft SharePoint Server 2010 environment, and enables IT organizations to increase operational efficiencies through Microsoft SQL Server 2008 R2-based management tools.

Links

Microsoft PowerPivot

The i found this one here:

A product installer – possibly from a 3rd party app has registered that file as being required for a System State backup and not then removed the registration from the System State when the file was removed.

Either identify the vendor of the file and speak to them about a fix – or create a file with the same name in the same folder. Note it is unlikely that you will need the specific file for a restore (assuming your server does restart correctly currently)

So, to have a short break fix, just create a dummy file OR contact the vendor of the driver/program.

Microsoft KB955078 Volume Shadow Copy Service (VSS) System Writer backup fails, and error messages reference nonexistent files in Windows Server 2008

Symantec had a KB entry, but the removed it.. i found it in the Google cache:

——————————

Document ID: 303664
http://support.veritas.com/docs/303664 E-Mail this document to a colleague

System State backup of a Windows 2008 server completes with an exception

Exact Error Message
Backup- System?State System?State
VSS Snapshot warning. File [PATH] [FILENAME] is not present on the snapshot.

Details:

System State backup of a Windows 2008 server may complete with the above mentioned exception if a driver file(s) was deleted/renamed. For example in the Figure 1, 04mmdat.sys is causing the exception.

Volume Shadow Copy Service (VSS) System Writer may list a file to be backed up even though the file is no longer present on the server. View the {GUID}-System_Writer.xml file located in the directory C:\Program Files\Symantec\Backup Exec\Logs to confirm if the writer lists the file present as an exception in the job log.
NOTE:
The exception can be safely ignored as it does not affect the functionality of the Backup set.
Workaround:
Follow the steps listed below:
1. Create a empty text file with the same name as the file mentioned in the exception
2. Place the document in the same location as in the exception
Resolution:
For more details on resolution refer to the following article from Microsoft:
http://support.microsoft.com/kb/955078

Supplemental Material:

System: Ref.#
Description

ETrack: 1264044
VSS Snapshot exceptions happen during system state backup if tape drivers were deleted

Acknowledgements
Microsoft

——————————

In addition, updates to core file services and server management are illustrated. You can use this poster in conjunction with the previously published Windows Server 2008 Component Posters.

click picture or here to enlarge

An explanation or better, a direction I’ve found at Atalasoft Knowledgebase Q10165.

I just changed the Platform target from x86 to Any CPU, recompiled both projects in the solution and since then, i can add a service reference. Who knows why.. you? drop me a mail/comment!

Error Message i got:

System.BadImageFormatException: Could not load file or assembly ‘file:///D:\Development\WCFTestService.SQL.2010\Media.Manager.SQL.Services.WCF\bin\Debug\Media.Manager.SQL.Services.WCF.exe’ or one of its dependencies. An attempt was made to load a program with an incorrect format.
File name: ‘file:///D:\Development\WCFTestService.SQL.2010\Media.Manager.SQL.Services.WCF\bin\Debug\Media.Manager.SQL.Services.WCF.exe’
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
   at Microsoft.Tools.SvcHost.ServiceHostHelper.LoadServiceAssembly(String svcAssemblyPath)

WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

In order to use the "Discover services in solution" functionality, the service projects must be based on one of the WCF project templates.
If you want to alter your existing project(s) so that they will be identified as projects containing WCF service(s), do the following:

• Right-click on the project in the Solution Explorer, and select Unload project
• Right-click the project again (this time the node will end in (unavailable) ) and choose Edit xxxxx.csproj
• In the first <PropertyGroup> section, add the following line:
  <ProjectTypeGuids>{3D9AD99F-2412-4246-B90B-4EAA41C64699};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
• Save and close the file
• Reload the project by right-clicking it again and choose Reload.

  You should then be able to use the "Discover services in solution" functionality.

With Visual Studio 2010, you can search for items and install them directly from within Visual Studio’s new Extension Manager. You launch it from the Tools menu:

When the dialog comes up, be sure to explore the various actionable areas on the left and also note the search on the right. For example, i clicked on Online Gallery on the left, in the Textbox in the upper right corner i typed Go To Definition (which is one of my favorite extensions atm) et voila:

Click on Download, restart Studio and you can Ctrl-Click and Variable, type, object to jump to its declaration

have phun!