diff --git a/basicswap/basicswap.py b/basicswap/basicswap.py
index 6a66914..2c4c51b 100644
--- a/basicswap/basicswap.py
+++ b/basicswap/basicswap.py
@@ -624,16 +624,20 @@ class BasicSwap(BaseApp):
             datadir_pid = -1
             for i in range(20):
                 try:
-                    # Workaround for mismatched pid file name in litecoin 0.21.2
-                    # Also set with pid= in .conf
-                    # TODO: Remove
-                    if cc['name'] == 'litecoin' and (not os.path.exists(pidfilepath)) and \
-                       os.path.exists(os.path.join(self.getChainDatadirPath(coin), 'bitcoind.pid')):
-                        pidfilepath = os.path.join(self.getChainDatadirPath(coin), 'bitcoind.pid')
+                    if os.name == 'nt' and cc['core_version_group'] <= 17:
+                        # Older core versions don't write a pid file on windows
+                        pass
+                    else:
+                        # Workaround for mismatched pid file name in litecoin 0.21.2
+                        # Also set with pid= in .conf
+                        # TODO: Remove
+                        if cc['name'] == 'litecoin' and (not os.path.exists(pidfilepath)) and \
+                           os.path.exists(os.path.join(self.getChainDatadirPath(coin), 'bitcoind.pid')):
+                            pidfilepath = os.path.join(self.getChainDatadirPath(coin), 'bitcoind.pid')
 
-                    with open(pidfilepath, 'rb') as fp:
-                        datadir_pid = int(fp.read().decode('utf-8'))
-                    assert (datadir_pid == cc['pid']), 'Mismatched pid'
+                        with open(pidfilepath, 'rb') as fp:
+                            datadir_pid = int(fp.read().decode('utf-8'))
+                        assert (datadir_pid == cc['pid']), 'Mismatched pid'
                     assert (os.path.exists(authcookiepath))
                     break
                 except Exception as e:
diff --git a/bin/basicswap_prepare.py b/bin/basicswap_prepare.py
index 82cde39..e665a6e 100755
--- a/bin/basicswap_prepare.py
+++ b/bin/basicswap_prepare.py
@@ -1547,7 +1547,7 @@ def main():
             'use_csv': False,
             'blocks_confirmed': 1,
             'conf_target': 2,
-            'core_version_group': 20,
+            'core_version_group': 17,
             'chain_lookups': 'local',
         },
         'dash': {