bring back powershell script when conn isnt local.

providers/os/resources/packages/windows_packages.go

@@ -82,6 +82,16 @@ const (
 	Defender
 )
 
+const installedAppsScript = `
+Get-ItemProperty (@(
+  'HKLM:\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\*',
+  'HKCU:\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\*',
+  'HKLM:\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\*',
+  'HKCU:\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\*'
+) | Where-Object { Test-Path $_ }) |
+Select-Object -Property DisplayName,DisplayVersion,Publisher,EstimatedSize,InstallSource,UninstallString | ConvertTo-Json -Compress
+`
+
 var (
 	WINDOWS_QUERY_HOTFIXES      = `Get-HotFix | Select-Object -Property Status, Description, HotFixId, Caption, InstalledOn, InstalledBy | ConvertTo-Json`
 	WINDOWS_QUERY_APPX_PACKAGES = `Get-AppxPackage -AllUsers | Select Name, PackageFullName, Architecture, Version, Publisher  | ConvertTo-Json`
@@ -204,7 +214,7 @@ func (w *WinPkgManager) Format() string {
 	return "win"
 }
 
-func (w *WinPkgManager) getInstalledApps() ([]Package, error) {
+func (w *WinPkgManager) getLocalInstalledApps() ([]Package, error) {
 	pkgs := []string{
 		"HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall",
 		"HKCU\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall",
@@ -230,6 +240,18 @@ func (w *WinPkgManager) getInstalledApps() ([]Package, error) {
 	return packages, nil
 }
 
+func (w *WinPkgManager) getInstalledApps() ([]Package, error) {
+	if w.conn.Type() == shared.Type_Local {
+		return w.getLocalInstalledApps()
+	}
+
+	cmd, err := w.conn.RunCommand(powershell.Wrap(installedAppsScript))
+	if err != nil {
+		return nil, fmt.Errorf("could not read app package list")
+	}
+	return ParseWindowsAppPackages(cmd.Stdout)
+}
+
 func (w *WinPkgManager) getPackageFromRegistryKey(key registry.RegistryKeyChild) *Package {
 	items, err := registry.GetNativeRegistryKeyItems(key.Path + "\\" + key.Name)
 	if err != nil {