diff --git a/ai5win_arc.py b/ai5win_arc.py
index b63ad5b..b8161c1 100644
--- a/ai5win_arc.py
+++ b/ai5win_arc.py
@@ -203,6 +203,19 @@ def hack_size_and_crypto_keys(input_file) -> tuple:
             good_size = next_offset - start_offset
             second_key = bad_size ^ good_size
 
+            try:
+                for entry in range(entry_count):
+                    starter = 4 + entry*(8 + bytes_for_name)
+                    input_file.seek(starter, 0)
+                    new_bytes = input_file.read(bytes_for_name)
+                    tester = b''
+                    for i in new_bytes:
+                        tester += struct.pack('B', i ^ first_key)
+                    tester = tester.rstrip(b'\x00')
+                    tester.decode(SilkyArc.name_encoding)
+            except UnicodeDecodeError:
+                continue
+
             if good_size <= 0:
                 continue
 
diff --git a/setup.py b/setup.py
index e3e3dc1..c499eea 100644
--- a/setup.py
+++ b/setup.py
@@ -14,8 +14,8 @@
                                     )]
 
 cx_Freeze.setup(
-        name="SilkyArcTool",
-        version="1.0",
+        name="AI5WINArcTool",
+        version="2.1",
         description="Dual languaged (rus+eng) tool for packing and unpacking archives of Silky Engine.\n"
                     "Двуязычное средство (рус+англ) для распаковки и запаковки архивов Silky Engine.",
         options={"build_exe": {"packages": []}},