diff --git a/BinaryObjectScanner/BinaryObjectScanner.csproj b/BinaryObjectScanner/BinaryObjectScanner.csproj
index f5bb3863..c4c3629c 100644
--- a/BinaryObjectScanner/BinaryObjectScanner.csproj
+++ b/BinaryObjectScanner/BinaryObjectScanner.csproj
@@ -69,7 +69,6 @@
 
     <!-- Support for old .NET versions -->
     <ItemGroup Condition="$(TargetFramework.StartsWith(`net2`))">
-        <PackageReference Include="Net30.LinqBridge" Version="1.3.0" />
         <PackageReference Include="Net35.Actions" Version="1.1.0" />
     </ItemGroup>
     <ItemGroup Condition="!$(TargetFramework.StartsWith(`net2`)) AND !$(TargetFramework.StartsWith(`net3`))">
diff --git a/BinaryObjectScanner/FileType/Executable.cs b/BinaryObjectScanner/FileType/Executable.cs
index 654b26c6..c1bc3a4b 100644
--- a/BinaryObjectScanner/FileType/Executable.cs
+++ b/BinaryObjectScanner/FileType/Executable.cs
@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+#if NET35_OR_GREATER || NETCOREAPP
 using System.Linq;
+#endif
 using BinaryObjectScanner.Data;
 using BinaryObjectScanner.Interfaces;
 using SabreTools.IO.Extensions;
@@ -267,9 +269,20 @@ namespace BinaryObjectScanner.FileType
                 return protections;
 
             // If we have any extractable packers
+#if NET20
+            var extractables = new List<IExtractableExecutable<T>>();
+            foreach (var check in checks)
+            {
+                if (check == null || check is not IExtractableExecutable<T> extractable)
+                    continue;
+
+                extractables.Add(extractable);
+            }
+#else
             var extractables = checks
                 .Where(c => c is IExtractableExecutable<T>)
                 .Select(c => c as IExtractableExecutable<T>);
+#endif
             extractables.IterateWithAction(extractable =>
             {
                 var subProtections = PerformExtractableCheck(extractable!, file, exe, getProtections, includeDebug);
diff --git a/BinaryObjectScanner/Protection/CDDVDCops.cs b/BinaryObjectScanner/Protection/CDDVDCops.cs
index 84152581..5e264d27 100644
--- a/BinaryObjectScanner/Protection/CDDVDCops.cs
+++ b/BinaryObjectScanner/Protection/CDDVDCops.cs
@@ -1,6 +1,8 @@
 using System;
 using System.Collections.Generic;
+#if NET35_OR_GREATER || NETCOREAPP
 using System.Linq;
+#endif
 using System.Text;
 using BinaryObjectScanner.Interfaces;
 using SabreTools.Matching;
@@ -125,9 +127,28 @@ namespace BinaryObjectScanner.Protection
 
             // Check the imported-name table
             // Found in "h3blade.exe" in Redump entry 85077.
+#if NET20
+            bool intMatch = false;
+            if (nex.Model.ImportedNameTable?.Values != null)
+            {
+                foreach (var inte in nex.Model.ImportedNameTable.Values)
+                {
+                    if (inte?.NameString == null || inte.NameString.Length == 0)
+                        continue;
+
+                    string ns = Encoding.ASCII.GetString(inte.NameString);
+                    if (ns.Contains("CDCOPS"))
+                    {
+                        intMatch = true;
+                        break;
+                    }
+                }
+            }
+#else
             bool intMatch = nex.Model.ImportedNameTable?.Values?
                 .Select(inte => inte?.NameString == null ? string.Empty : Encoding.ASCII.GetString(inte.NameString))
                 .Any(s => s.Contains("CDCOPS")) ?? false;
+#endif
             if (intMatch)
                 return "CD-Cops";
 
diff --git a/BinaryObjectScanner/Protection/Macrovision.CactusDataShield.cs b/BinaryObjectScanner/Protection/Macrovision.CactusDataShield.cs
index f914c7b9..117d328c 100644
--- a/BinaryObjectScanner/Protection/Macrovision.CactusDataShield.cs
+++ b/BinaryObjectScanner/Protection/Macrovision.CactusDataShield.cs
@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+#if NET35_OR_GREATER || NETCOREAPP
 using System.Linq;
+#endif
 using System.Text;
 using SabreTools.Matching;
 using SabreTools.Matching.Paths;
@@ -121,10 +123,22 @@ namespace BinaryObjectScanner.Protection
                 return string.Empty;
 
             // Find the version.txt file first
+#if NET20
+            string? versionPath = null;
+            foreach (string file in files)
+            {
+                if (Path.GetFileName(file).Equals("version.txt", StringComparison.OrdinalIgnoreCase))
+                {
+                    versionPath = file;
+                    break;
+                }
+            }
+#else
             var versionPath = files.FirstOrDefault(f => Path.GetFileName(f).Equals("version.txt", StringComparison.OrdinalIgnoreCase));
+#endif
             if (!string.IsNullOrEmpty(versionPath))
             {
-                var version = GetCactusDataShieldInternalVersion(versionPath);
+                var version = GetCactusDataShieldInternalVersion(versionPath!);
                 if (!string.IsNullOrEmpty(version))
                     return version!;
             }
diff --git a/BinaryObjectScanner/Protection/Macrovision.cs b/BinaryObjectScanner/Protection/Macrovision.cs
index ff9247ad..095b97ce 100644
--- a/BinaryObjectScanner/Protection/Macrovision.cs
+++ b/BinaryObjectScanner/Protection/Macrovision.cs
@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+#if NET35_OR_GREATER || NETCOREAPP
 using System.Linq;
+#endif
 using BinaryObjectScanner.Interfaces;
 using SabreTools.IO.Extensions;
 using SabreTools.Matching;
@@ -631,7 +633,19 @@ namespace BinaryObjectScanner.Protection
             }
 
             // Get distinct and order
+#if NET20
+            var distinct = new List<string>();
+            foreach (string result in resultsList)
+            {
+                if (!distinct.Contains(result))
+                    distinct.Add(result);
+            }
+
+            distinct.Sort();
+            return distinct;
+#else
             return [.. resultsList.Distinct().OrderBy(s => s)];
+#endif
         }
     }
 }
diff --git a/ProtectionScan/Program.cs b/ProtectionScan/Program.cs
index 8e93712f..c45963de 100644
--- a/ProtectionScan/Program.cs
+++ b/ProtectionScan/Program.cs
@@ -1,6 +1,8 @@
 using System;
 using System.IO;
+#if NET35_OR_GREATER || NETCOREAPP
 using System.Linq;
+#endif
 using BinaryObjectScanner;
 
 namespace ProtectionScan
@@ -85,13 +87,26 @@ namespace ProtectionScan
             }
 
             using var sw = new StreamWriter(File.OpenWrite($"protection-{DateTime.Now:yyyy-MM-dd_HHmmss.ffff}.txt"));
+#if NET20
+            var keysArr = new string[protections.Keys.Count];
+            protections.Keys.CopyTo(keysArr, 0);
+            Array.Sort(keysArr);
+            foreach (string key in keysArr)
+#else
             foreach (string key in protections.Keys.OrderBy(k => k))
+#endif
             {
                 // Skip over files with no protection
                 if (protections[key] == null || protections[key].Count == 0)
                     continue;
 
-                string line = $"{key}: {string.Join(", ", [.. protections[key].OrderBy(p => p)])}";
+#if NET20
+                string[] fileProtections = [.. protections[key]];
+                Array.Sort(fileProtections);
+#else
+                string[] fileProtections = [.. protections[key].OrderBy(p => p)];
+#endif
+                string line = $"{key}: {string.Join(", ", fileProtections)}";
                 Console.WriteLine(line);
                 sw.WriteLine(line);
             }