Modul testu „Je funkce nainstalována“ zkontroluje, zda je v počítači se systémem Windows Server 2008 nebo novějším serverovým operačním systémem nainstalována zadaná funkce. Tento modul mohou použít vývojáři, kteří potřebují zjistit nainstalované funkce. Další informace o tom, jak používat tento typ modulu, naleznete v příručce k sadě Management Pack.
$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)