cache: add win32-background-launcher to the cached binaries

on a released crc version the win32-background-laucher will be installed
in the install location of crc by the msi, but while using a non
installer version this'll help to download the win32-background-launcher
binary by running `crc setup`

this is also helpful for testing different versions of the background
launcher during development

pkg/crc/cache/cache_windows.go

@@ -0,0 +1,26 @@
+package cache
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/crc-org/crc/v2/pkg/crc/constants"
+	"github.com/crc-org/crc/v2/pkg/crc/version"
+	"github.com/crc-org/crc/v2/pkg/os/windows/powershell"
+)
+
+func NewWin32BackgroundLauncherCache() *Cache {
+	url := constants.GetCRCWindowsBackgroundLauncherDownloadURL()
+	version := version.GetWin32BackgroundLauncherVersion()
+	return newCache(constants.Win32BackgroundLauncherPath(),
+		url,
+		version,
+		func(executable string) (string, error) {
+			stdOut, stdErr, err := powershell.Execute(fmt.Sprintf(`(Get-Item '%s').VersionInfo.FileVersion`, executable))
+			if err != nil {
+				return "", fmt.Errorf("unable to get version: %s: %w", stdErr, err)
+			}
+			return strings.TrimSpace(stdOut), nil
+		},
+	)
+}

pkg/crc/preflight/preflight_daemon_task_check_windows.go

@@ -9,6 +9,7 @@ import (
 	"os/user"
 	"strings"
 
+	"github.com/crc-org/crc/v2/pkg/crc/cache"
 	"github.com/crc-org/crc/v2/pkg/crc/constants"
 	"github.com/crc-org/crc/v2/pkg/crc/logging"
 	"github.com/crc-org/crc/v2/pkg/crc/version"
@@ -188,9 +189,22 @@ func killDaemonProcessIfRunning() error {
 	return nil
 }
 
-func removeDaemonPoshScript() error {
-	if crcos.FileExists(daemonPoshScriptPath) {
-		return os.Remove(daemonPoshScriptPath)
+func checkWin32BackgroundLauncherInstalled() error {
+	c := cache.NewWin32BackgroundLauncherCache()
+	return c.CheckVersion()
+}
+
+func fixWin32BackgroundLauncherInstalled() error {
+	c := cache.NewWin32BackgroundLauncherCache()
+	return c.EnsureIsCached()
+}
+
+func removeWin32BackgroundLauncher() error {
+	if version.IsInstaller() {
+		return nil
+	}
+	if crcos.FileExists(constants.Win32BackgroundLauncherPath()) {
+		return os.Remove(constants.Win32BackgroundLauncherPath())
 	}
 	return nil
 }

pkg/crc/preflight/preflight_windows.go

@@ -99,6 +99,17 @@ var daemonTaskChecks = []Check{
 
 		labels: labels{Os: Windows},
 	},
+	{
+		configKeySuffix:    "check-background-launcher-install",
+		checkDescription:   "Checking if the win32 background launcher is installed",
+		check:              checkWin32BackgroundLauncherInstalled,
+		fixDescription:     "Installing the win32 background launcher",
+		fix:                fixWin32BackgroundLauncherInstalled,
+		cleanupDescription: "Removing the win32 background launcher",
+		cleanup:            removeWin32BackgroundLauncher,
+
+		labels: labels{Os: Windows},
+	},
 	{
 		configKeySuffix:    "check-daemon-task-install",
 		checkDescription:   "Checking if the daemon task is installed",