diff --git a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
index 18bebed4..bc66a767 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
@@ -1048,28 +1048,33 @@ public class CoreConfigSingboxService
 
     private void GenRoutingDirectExe(out List<string> lstDnsExe, out List<string> lstDirectExe)
     {
-        lstDnsExe = new();
-        lstDirectExe = new();
-        var coreInfo = CoreInfoHandler.Instance.GetCoreInfo();
-        foreach (var it in coreInfo)
+        var dnsExeSet = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        var directExeSet = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+
+        var coreInfoResult = CoreInfoHandler.Instance.GetCoreInfo();
+        var fileSuffix = Utils.IsWindows() ? ".exe" : "";
+
+        foreach (var coreConfig in coreInfoResult)
         {
-            if (it.CoreType == ECoreType.v2rayN)
+            if (coreConfig.CoreType == ECoreType.v2rayN)
             {
                 continue;
             }
-            foreach (var it2 in it.CoreExes)
-            {
-                if (!lstDnsExe.Contains(it2) && it.CoreType != ECoreType.sing_box)
-                {
-                    lstDnsExe.Add($"{it2}.exe");
-                }
 
-                if (!lstDirectExe.Contains(it2))
+            foreach (var baseExeName in coreConfig.CoreExes)
+            {
+                var executableName = $"{baseExeName}{fileSuffix}";
+
+                if (coreConfig.CoreType != ECoreType.sing_box)
                 {
-                    lstDirectExe.Add($"{it2}.exe");
+                    dnsExeSet.Add(executableName);
                 }
+                directExeSet.Add(executableName);
             }
         }
+
+        lstDnsExe = new List<string>(dnsExeSet);
+        lstDirectExe = new List<string>(directExeSet);
     }
 
     private async Task<int> GenRoutingUserRule(RulesItem item, List<Rule4Sbox> rules)