De probemodule "Is functie geïnstalleerd" controleert of een bepaalde functie op een computer met Windows Server 2008 of een nieuwer serverbesturingssysteem is geïnstalleerd. Deze module kan gebruikt worden door ontwikkelaars die moeten weten welke functies zijn geïnstalleerd. Raadpleeg de handleiding van het management pack voor meer informatie over het gebruik van dit type module.
$WIN_SRV_2012_OSVer = "6.2"
#******************************************************************************
# FUNCTION: CheckByOSCurrentVersion
# DESCRIPTION: Returns True if the Registry Key for CurrentVersion
# is equal the target OS Versions Number.
# RETURNS: Boolean: True, if build is greater or equal than the given number
#******************************************************************************
function CheckByOSCurrentVersion()
{
$strCurrentOSVer = Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\"
$strCurrentOSVer = $strCurrentOSVer.CurrentVersion
$CheckByOSCurrentVersion = $false
if($strCurrentOSVer -ge $WIN_SRV_2012_OSVer){
$CheckByOSCurrentVersion = $true
}else{
$CheckByOSCurrentVersion = $false
}
return $CheckByOSCurrentVersion;
}
$useCIM = CheckByOSCurrentVersion
#---------------------------------------------------------------------------
# Returns WMI Instance requested. Tries to execute WMI query a N times.
#---------------------------------------------------------------------------
Function WMIGetInstanceExTryN
{
param ([string]$sTargetComputer,
[string]$sNamespace,
[string]$sInstanceQuery,
[int]$N)
for ($i = 0; $i -lt $N; $i++)
{
$error.Clear();
if($useCIM){
Load-CimModules
try
{
$cimSessionOption = New-CimSessionOption -Protocol DCOM
$cimsession = New-CimSession -ComputerName $sTargetComputer -SessionOption $cimSessionOption
$oInstance = Get-CimInstance -CimSession $cimsession -Namespace $sNamespace -Query ("Select * from "+$sInstanceQuery) -ErrorAction SilentlyContinue
}
catch
{
$oInstance = Get-WMIObject -ComputerName $sTargetComputer -Namespace $sNamespace -Query ("Select * from "+$sInstanceQuery) -ErrorAction SilentlyContinue
}
Finally
{
Get-CimSession | Remove-CimSession
$cimsession =$null
$cimSessionOption = $null
}
}else{
$oInstance = Get-WMIObject -ComputerName $sTargetComputer -Namespace $sNamespace -Query ("Select * from "+$sInstanceQuery) -ErrorAction SilentlyContinue
}
if ($error.Count -gt 0)
{
if ($i -eq ($N-1))
{
ThrowScriptError ("The class name '" + $sInstanceQuery + "' returned no instances. Please check to see if this is a valid WMI class name.") $error[0]
}
}
else
{
break;
}
sleep -m 1000
}
#---------------------------------------------------------------------------
# Executes the WMI query and returns the result set.
#---------------------------------------------------------------------------
Function WMIExecQuery
{
param ([string]$sTargetComputer,
[string]$sNamespace,
[string]$sQuery)
$error.Clear()
if($useCIM){
Load-CimModules
try
{
$cimSessionOption = New-CimSessionOption -Protocol DCOM
$cimsession = New-CimSession -ComputerName $sTargetComputer -SessionOption $cimSessionOption
$oQuery = Get-CimInstance -CimSession $cimsession -Namespace $sNamespace -Query $sQuery -ErrorAction SilentlyContinue
}
catch
{
$oQuery = Get-WMIObject -ComputerName $sTargetComputer -Namespace $sNamespace -Query $sQuery -ErrorAction SilentlyContinue
}
Finally
{
Get-CimSession | Remove-CimSession
$cimsession =$null
$cimSessionOption = $null
}
}else{
$oQuery = Get-WMIObject -ComputerName $sTargetComputer -Namespace $sNamespace -Query $sQuery -ErrorAction SilentlyContinue
}
if ($error.Count -gt 0)
{
ThrowScriptError ("The Query '" + $sQuery + "' returned an invalid result set. Please check to see if this is a valid WMI Query.") $error[0]
}
#---------------------------------------------------------------------------
# Creates an event and sends it back to the mom server.
#---------------------------------------------------------------------------
Function ThrowScriptErrorNoAbort
{
param ([string]$sMessage,
[System.Management.Automation.ErrorRecord]$oErr)
# Retrieve the name of this (running) script
$ScriptFileName = $MyInvocation.ScriptName
#---------------------------------------------------------------------------
# Creates an event and sends it back to the mom server.
#---------------------------------------------------------------------------
Function ThrowScriptError
{
param ([string]$sMessage,
[System.Management.Automation.ErrorRecord]$oErr)
ThrowScriptErrorNoAbort $sMessage $oErr
exit
}
#---------------------------------------------------------------------------
# Outputs to file and echo for debugging purposes
#---------------------------------------------------------------------------
Function TraceLogMessage
{
param ([string]$sMessage)
Write-Host $sMessage
If ($g_DebugFlag -eq $true)
{
# Retrieve the name of this (running) script
$ScriptFileName = $MyInvocation.ScriptName
#---------------------------------------------------------------------------
# Verifies the expression. If equals to False then generates an error and quits the script
# Usage:
# Verify Not WMISet Is Nothing, "WMISet is invalid!"
# Verify WMISet.Count = 1, "Invalid quantity of services with name 'Server' (qty = " & WMISet.Count & ")."
#---------------------------------------------------------------------------
Function Verify
{
param ([bool]$bBool,
[string]$sMessage)
If ($bBool -eq $false)
{
ThrowScriptError $sMessage $null
}
}
Function GetRegistryKeyValue
{
param ([string]$keyPath,
[string]$key)
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