diff --git a/agent-node/src/agent_node/main.py b/agent-node/src/agent_node/main.py
index 0e891c0..4cba41c 100644
--- a/agent-node/src/agent_node/main.py
+++ b/agent-node/src/agent_node/main.py
@@ -85,10 +85,11 @@
     
     current_pid = os.getpid()
     try:
-        # Use realpath to resolve any symlinks for accurate comparison
-        my_path = os.path.realpath(__file__)
+        # Use realpath to resolve any symlinks for accurate comparison.
+        # normcase is essential for Windows (case-insensitivity and backslashes).
+        my_path = os.path.normcase(os.path.realpath(__file__))
     except:
-        my_path = os.path.abspath(__file__)
+        my_path = os.path.normcase(os.path.abspath(__file__))
     
     cleaned = 0
     try:
@@ -110,12 +111,12 @@
                         try:
                             # 1. Try absolute path resolution
                             if os.path.isabs(arg):
-                                check_path = os.path.realpath(arg)
+                                check_path = os.path.normcase(os.path.realpath(arg))
                             else:
                                 # 2. Try relative resolution based on the sibling's current working directory
                                 try:
                                     cwd = proc.cwd()
-                                    check_path = os.path.realpath(os.path.join(cwd, arg))
+                                    check_path = os.path.normcase(os.path.realpath(os.path.join(cwd, arg)))
                                 except (psutil.AccessDenied, psutil.NoSuchProcess):
                                     # If we can't get the CWD of the other process, we rely on a direct name match 
                                     # but stay conservative to avoid killing unrelated processes.
@@ -182,11 +183,8 @@
     # 0. Singleton Enforcement: Murder siblings before booting
     try:
         import psutil
-        if os.name != 'nt':
-            print("[*] Running singleton check...")
-            enforce_singleton()
-        else:
-            print("[*] Skipping singleton check on Windows...")
+        print("[*] Running singleton check...")
+        enforce_singleton()
     except Exception as e:
         print(f"[!] Singleton check failed: {e}")
         traceback.print_exc()