fix incorrect process checking dll path

Author: melo936

common/bin/main.dart

@@ -12,7 +12,7 @@ Future<void> main(List<String> args) async {
   if (args.isEmpty) {
     final guiPath =
         "${mainPath.substring(0, mainPath.lastIndexOf("\\"))}\\revitoolw.exe";
-    if (await File(guiPath).exists()) {
+    if (File(guiPath).existsSync()) {
       await Process.start('revitoolw', []);
       exit(0);
     }
@@ -21,12 +21,15 @@ Future<void> main(List<String> args) async {
 
   logger.i('Revision Tool CLI is starting');
 
-  final runner = CommandRunner<String>("revitool",
-      "Revision Tool CLI v${const String.fromEnvironment('APP_VERSION', defaultValue: '1.0.0')}")
-    ..addCommand(MSStoreCommand())
-    ..addCommand(DefenderCommand())
-    ..addCommand(WindowsPackageCommand())
-    ..addCommand(PlaybookPatchesCommand());
+  final runner =
+      CommandRunner<String>(
+          "revitool",
+          "Revision Tool CLI v${const String.fromEnvironment('APP_VERSION', defaultValue: '1.0.0')}",
+        )
+        ..addCommand(MSStoreCommand())
+        ..addCommand(DefenderCommand())
+        ..addCommand(WindowsPackageCommand())
+        ..addCommand(PlaybookPatchesCommand());
   // ..addCommand(RecommendationCommand());
   await runner.run(args);
   exit(0);

common/lib/src/utils.dart

@@ -38,11 +38,20 @@ typedef IsRunningCDart = int Function(Pointer<Utf16>);
 bool isProcessRunning(String name) {
   final dllPath =
       const bool.fromEnvironment("dart.vm.product")
-          ? path.join(path.current, 'process_checker.dll')
+          ? path.join(
+            mainPath.substring(0, mainPath.lastIndexOf("\\")),
+            'process_checker.dll',
+          )
           : path.join(
             path.current.substring(0, path.current.lastIndexOf('\\')),
             'native_utils\\process_checker.dll',
           ); // for dev purposes
+
+  if (!File(dllPath).existsSync()) {
+    logger.e('DLL not found: $dllPath');
+    return false;
+  }
+
   final dylib = DynamicLibrary.open(dllPath);
 
   final isRunningC = dylib.lookupFunction<IsRunningCFunc, IsRunningCDart>(