Required Files: None
Gathers a List of All Installed Applications
Function Get-RemoteProgram { <# .Synopsis Generates a list of installed programs on a computer .DESCRIPTION This function generates a list by querying the registry and returning the installed programs of a local or remote computer. .NOTES Name : Get-RemoteProgram Author : Jaap Brasser Version : 1.3 DateCreated: 2013-08-23 DateUpdated: 2016-08-26 Blog : http://www.jaapbrasser.com .LINK http://www.jaapbrasser.com .PARAMETER ComputerName The computer to which connectivity will be checked .PARAMETER Property Additional values to be loaded from the registry. Can contain a string or an array of string that will be attempted to retrieve from the registry for each program entry .PARAMETER ExcludeSimilar This will filter out similar programnames, the default value is to filter on the first 3 words in a program name. If a program only consists of less words it is excluded and it will not be filtered. For example if you Visual Studio 2015 installed it will list all the components individually, using -ExcludeSimilar will only display the first entry. .PARAMETER SimilarWord This parameter only works when ExcludeSimilar is specified, it changes the default of first 3 words to any desired value. .EXAMPLE Get-RemoteProgram Description: Will generate a list of installed programs on local machine .EXAMPLE Get-RemoteProgram -ComputerName server01,server02 Description: Will generate a list of installed programs on server01 and server02 .EXAMPLE Get-RemoteProgram -ComputerName Server01 -Property DisplayVersion,VersionMajor Description: Will gather the list of programs from Server01 and attempts to retrieve the displayversion and versionmajor subkeys from the registry for each installed program .EXAMPLE 'server01','server02' | Get-RemoteProgram -Property Uninstallstring Description Will retrieve the installed programs on server01/02 that are passed on to the function through the pipeline and also retrieves the uninstall string for each program .EXAMPLE 'server01','server02' | Get-RemoteProgram -Property Uninstallstring -ExcludeSimilar -SimilarWord 4 Description Will retrieve the installed programs on server01/02 that are passed on to the function through the pipeline and also retrieves the uninstall string for each program. Will only display a single entry of a program of which the first four words are identical. #> [CmdletBinding(SupportsShouldProcess=$true)] param( [Parameter(ValueFromPipeline =$true, ValueFromPipelineByPropertyName=$true, Position=0 )] [string[]] $ComputerName = $env:COMPUTERNAME, [Parameter(Position=0)] [string[]] $Property, [switch] $ExcludeSimilar, [int] $SimilarWord ) begin { $RegistryLocation = 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\', 'SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\' $HashProperty = @{} $SelectProperty = @('ProgramName','ComputerName') if ($Property) { $SelectProperty += $Property } } process { foreach ($Computer in $ComputerName) { $RegBase = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine,$Computer) $RegistryLocation | ForEach-Object { $CurrentReg = $_ if ($RegBase) { $CurrentRegKey = $RegBase.OpenSubKey($CurrentReg) if ($CurrentRegKey) { $CurrentRegKey.GetSubKeyNames() | ForEach-Object { if ($Property) { foreach ($CurrentProperty in $Property) { $HashProperty.$CurrentProperty = ($RegBase.OpenSubKey("$CurrentReg$_")).GetValue($CurrentProperty) } } $HashProperty.ComputerName = $Computer $HashProperty.ProgramName = ($DisplayName = ($RegBase.OpenSubKey("$CurrentReg$_")).GetValue('DisplayName')) if ($DisplayName) { New-Object -TypeName PSCustomObject -Property $HashProperty | Select-Object -Property $SelectProperty } } } } } | ForEach-Object -Begin { if ($SimilarWord) { $Regex = [regex]"(^(.+?\s){$SimilarWord}).*$|(.*)" } else { $Regex = [regex]"(^(.+?\s){3}).*$|(.*)" } [System.Collections.ArrayList]$Array = @() } -Process { if ($ExcludeSimilar) { $null = $Array.Add($_) } else { $_ } } -End { if ($ExcludeSimilar) { $Array | Select-Object -Property *,@{ name = 'GroupedName' expression = { ($_.ProgramName -split $Regex)[1] } } | Group-Object -Property 'GroupedName' | ForEach-Object { $_.Group[0] | Select-Object -Property * -ExcludeProperty GroupedName } } } } } } Get-RemoteProgram -ComputerName $env:computername |