MSI Metadata MCP Server

param( [ValidateSet('list','find','by_product_code')][string]$Action = 'list', [string]$Name, [string]$ProductCode ) $ErrorActionPreference = 'Stop' $roots = @( 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall', 'HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall', 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall', 'HKCU:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall' ) function Read-AppsFromRoot([string]$root) { if (-not (Test-Path -LiteralPath $root)) { return @() } $items = Get-ChildItem -LiteralPath $root -ErrorAction SilentlyContinue $rows = @() foreach ($it in $items) { try { $p = Get-ItemProperty -LiteralPath $it.PSPath -ErrorAction Stop if (-not $p.DisplayName) { continue } $uninst = $p.UninstallString $quiet = $p.QuietUninstallString $guid = $null if ($uninst -match '\{[0-9A-Fa-f\-]{36}\}') { $guid = $Matches[0] } $rows += [pscustomobject]@{ KeyPath = $it.PSPath DisplayName = $p.DisplayName DisplayVersion = $p.DisplayVersion Publisher = $p.Publisher InstallLocation = $p.InstallLocation UninstallString = $uninst QuietUninstallString = $quiet ProductCode = $guid } } catch { } } return $rows } $all = @() foreach ($r in $roots) { $all += Read-AppsFromRoot -root $r } switch ($Action) { 'list' { $all | ConvertTo-Json -Compress break } 'find' { if (-not $Name) { throw 'Name is required for Action=find' } $needle = $Name.ToLower() $all | Where-Object { $_.DisplayName -and $_.DisplayName.ToLower().Contains($needle) } | ConvertTo-Json -Compress break } 'by_product_code' { if (-not $ProductCode) { throw 'ProductCode is required for Action=by_product_code' } $pc = $ProductCode.ToLower() $all | Where-Object { $_.ProductCode -and $_.ProductCode.ToLower() -eq $pc } | ConvertTo-Json -Compress break } default { throw "Unknown action: $Action" } }