Public/Get-InstalledSoftware.ps1
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#http://jongurgul.com/blog/installedsoftware/ Function Get-InstalledSoftware { Param([String[]]$Computers) If (!$Computers) {$Computers = $ENV:ComputerName} $Base = New-Object PSObject; $Base | Add-Member Noteproperty ComputerName -Value $Null; $Base | Add-Member Noteproperty Name -Value $Null; $Base | Add-Member Noteproperty Publisher -Value $Null; $Base | Add-Member Noteproperty InstallDate -Value $Null; $Base | Add-Member Noteproperty EstimatedSize -Value $Null; $Base | Add-Member Noteproperty Version -Value $Null; $Results = New-Object System.Collections.Generic.List[System.Object]; ForEach ($ComputerName in $Computers) { $Registry = $Null; Try {$Registry = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine, $ComputerName); } Catch {Write-Host -ForegroundColor Red "$($_.Exception.Message)"; } If ($Registry) { $UninstallKeys = $Null; $SubKey = $Null; $UninstallKeys = $Registry.OpenSubKey("Software\Microsoft\Windows\CurrentVersion\Uninstall", $False); $UninstallKeys.GetSubKeyNames()| % { $SubKey = $UninstallKeys.OpenSubKey($_, $False); $DisplayName = $SubKey.GetValue("DisplayName"); If ($DisplayName.Length -gt 0) { $Entry = $Base | Select-Object * $Entry.ComputerName = $ComputerName; $Entry.Name = $DisplayName.Trim(); $Entry.Publisher = $SubKey.GetValue("Publisher"); [ref]$ParsedInstallDate = Get-Date If ([DateTime]::TryParseExact($SubKey.GetValue("InstallDate"), "yyyyMMdd", $Null, [System.Globalization.DateTimeStyles]::None, $ParsedInstallDate)) { $Entry.InstallDate = $ParsedInstallDate.Value } $Entry.EstimatedSize = [Math]::Round($SubKey.GetValue("EstimatedSize") / 1KB, 1); $Entry.Version = $SubKey.GetValue("DisplayVersion"); [Void]$Results.Add($Entry); } } } } $Results } #http://jongurgul.com/blog/installedsoftware/ Function Get-InstalledSoftware { Param([String[]]$Computers) If (!$Computers) {$Computers = $ENV:ComputerName} $Base = New-Object PSObject; $Base | Add-Member Noteproperty ComputerName -Value $Null; $Base | Add-Member Noteproperty Name -Value $Null; $Base | Add-Member Noteproperty Publisher -Value $Null; $Base | Add-Member Noteproperty InstallDate -Value $Null; $Base | Add-Member Noteproperty EstimatedSize -Value $Null; $Base | Add-Member Noteproperty Version -Value $Null; $Base | Add-Member Noteproperty Wow6432Node -Value $Null; $Results = New-Object System.Collections.Generic.List[System.Object]; ForEach ($ComputerName in $Computers) { $Registry = $Null; Try {$Registry = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine, $ComputerName); } Catch { Write-Host -ForegroundColor Red "$($_.Exception.Message)"; If ($Registry) { $UninstallKeys = $Null; $SubKey = $Null; $UninstallKeys = $Registry.OpenSubKey("Software\Microsoft\Windows\CurrentVersion\Uninstall", $False); $UninstallKeys.GetSubKeyNames()| % { $SubKey = $UninstallKeys.OpenSubKey($_, $False); $DisplayName = $SubKey.GetValue("DisplayName"); If ($DisplayName.Length -gt 0) { $Entry = $Base | Select-Object * $Entry.ComputerName = $ComputerName; $Entry.Name = $DisplayName.Trim(); $Entry.Publisher = $SubKey.GetValue("Publisher"); [ref]$ParsedInstallDate = Get-Date If ([DateTime]::TryParseExact($SubKey.GetValue("InstallDate"), "yyyyMMdd", $Null, [System.Globalization.DateTimeStyles]::None, $ParsedInstallDate)) { $Entry.InstallDate = $ParsedInstallDate.Value } $Entry.EstimatedSize = [Math]::Round($SubKey.GetValue("EstimatedSize") / 1KB, 1); $Entry.Version = $SubKey.GetValue("DisplayVersion"); [Void]$Results.Add($Entry); } } If ([IntPtr]::Size -eq 8) { $UninstallKeysWow6432Node = $Null; $SubKeyWow6432Node = $Null; $UninstallKeysWow6432Node = $Registry.OpenSubKey("Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall", $False); If ($UninstallKeysWow6432Node) { $UninstallKeysWow6432Node.GetSubKeyNames()| % { $SubKeyWow6432Node = $UninstallKeysWow6432Node.OpenSubKey($_, $False); $DisplayName = $SubKeyWow6432Node.GetValue("DisplayName"); If ($DisplayName.Length -gt 0) { $Entry = $Base | Select-Object * $Entry.ComputerName = $ComputerName; $Entry.Name = $DisplayName.Trim(); $Entry.Publisher = $SubKeyWow6432Node.GetValue("Publisher"); [ref]$ParsedInstallDate = Get-Date If ([DateTime]::TryParseExact($SubKeyWow6432Node.GetValue("InstallDate"), "yyyyMMdd", $Null, [System.Globalization.DateTimeStyles]::None, $ParsedInstallDate)) { $Entry.InstallDate = $ParsedInstallDate.Value } $Entry.EstimatedSize = [Math]::Round($SubKeyWow6432Node.GetValue("EstimatedSize") / 1KB, 1); $Entry.Version = $SubKeyWow6432Node.GetValue("DisplayVersion"); $Entry.Wow6432Node = $True; [Void]$Results.Add($Entry); } } } } } } $Results } } |