diff --git a/LibreMetaverse.GUI/LibreMetaverse.GUI.csproj b/LibreMetaverse.GUI/LibreMetaverse.GUI.csproj
index f31a6cf2..43095e45 100644
--- a/LibreMetaverse.GUI/LibreMetaverse.GUI.csproj
+++ b/LibreMetaverse.GUI/LibreMetaverse.GUI.csproj
@@ -1,12 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup Condition=" '$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))' ">
-	<TargetFrameworks>net6.0-windows;net7.0-windows</TargetFrameworks>
+	<TargetFrameworks>net48;net6.0-windows;net7.0-windows</TargetFrameworks>
   </PropertyGroup>
   <PropertyGroup Condition=" '$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Linux)))' ">
-	<TargetFrameworks>net6.0-linux;net7.0-linux</TargetFrameworks>
+	<TargetFrameworks>net48;net6.0-linux;net7.0-linux</TargetFrameworks>
   </PropertyGroup>
   <PropertyGroup Condition=" '$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::OSX)))' ">
-	<TargetFrameworks>net6.0-macos;net7.0-macos</TargetFrameworks>
+	<TargetFrameworks>net48;net6.0-macos;net7.0-macos</TargetFrameworks>
   </PropertyGroup>
   <PropertyGroup>
     <AssemblyName>LibreMetaverse.GUI</AssemblyName>
diff --git a/LibreMetaverse.LslTools/LibreMetaverse.LslTools.csproj b/LibreMetaverse.LslTools/LibreMetaverse.LslTools.csproj
index 9db02215..4a90aa2a 100644
--- a/LibreMetaverse.LslTools/LibreMetaverse.LslTools.csproj
+++ b/LibreMetaverse.LslTools/LibreMetaverse.LslTools.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-		<TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
+		<TargetFrameworks>net48;netstandard2.1;net6.0;net7.0</TargetFrameworks>
 		<AssemblyName>LibreMetaverse.LslTools</AssemblyName>
 	    <PackageId>LibreMetaverse.LslTools</PackageId>
 	    <Description>Lexer for LSL scrripting language</Description>
diff --git a/LibreMetaverse.Rendering.Meshmerizer/LibreMetaverse.Rendering.Meshmerizer.csproj b/LibreMetaverse.Rendering.Meshmerizer/LibreMetaverse.Rendering.Meshmerizer.csproj
index 30ed2a24..3d415741 100644
--- a/LibreMetaverse.Rendering.Meshmerizer/LibreMetaverse.Rendering.Meshmerizer.csproj
+++ b/LibreMetaverse.Rendering.Meshmerizer/LibreMetaverse.Rendering.Meshmerizer.csproj
@@ -4,7 +4,7 @@
 	<PackageId>LibreMetaverse.Rendering.Meshmerizer</PackageId>
 	<Description>Meshmerizer library for rendering mesh assets in LibreMetaverse</Description>
 	<RootNamespace>LibreMetaverse.Rendering.Meshmerizer</RootNamespace>
-    <TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.1;net6.0;net7.0</TargetFrameworks>
     <OutputType>Library</OutputType>
 	<GenerateAssemblyInfo>true</GenerateAssemblyInfo>
 	<IncludeSymbols>true</IncludeSymbols>
diff --git a/LibreMetaverse.Rendering.Simple/LibreMetaverse.Rendering.Simple.csproj b/LibreMetaverse.Rendering.Simple/LibreMetaverse.Rendering.Simple.csproj
index 7153f80b..2a6c0267 100644
--- a/LibreMetaverse.Rendering.Simple/LibreMetaverse.Rendering.Simple.csproj
+++ b/LibreMetaverse.Rendering.Simple/LibreMetaverse.Rendering.Simple.csproj
@@ -3,7 +3,7 @@
     <AssemblyName>LibreMetaverse.Rendering.Simple</AssemblyName>
 	<Description>Simple library for rendering mesh assets in LibreMetaverse</Description>
 	<PackageId>LibreMetaverse.Rendering.Simple</PackageId>
-    <TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.1;net6.0;net7.0</TargetFrameworks>
     <OutputType>Library</OutputType>
     <RootNamespace>LibreMetaverse.Rendering.Simple</RootNamespace>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
diff --git a/LibreMetaverse.StructuredData/LibreMetaverse.StructuredData.csproj b/LibreMetaverse.StructuredData/LibreMetaverse.StructuredData.csproj
index c7f949a9..4c70caaf 100644
--- a/LibreMetaverse.StructuredData/LibreMetaverse.StructuredData.csproj
+++ b/LibreMetaverse.StructuredData/LibreMetaverse.StructuredData.csproj
@@ -3,7 +3,7 @@
     <AssemblyName>LibreMetaverse.StructuredData</AssemblyName>
 	<Description>LibreMetaverse structured data library</Description>
 	<PackageId>LibreMetaverse.StructuredData</PackageId>
-    <TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.1;net6.0;net7.0</TargetFrameworks>
     <OutputType>Library</OutputType>
     <RootNamespace>LibreMetaverse.StructuredData</RootNamespace>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
diff --git a/LibreMetaverse.Tests/LibreMetaverse.Tests.csproj b/LibreMetaverse.Tests/LibreMetaverse.Tests.csproj
index e9470543..b270465b 100644
--- a/LibreMetaverse.Tests/LibreMetaverse.Tests.csproj
+++ b/LibreMetaverse.Tests/LibreMetaverse.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <AssemblyName>LibreMetaverse.Tests</AssemblyName>
-    <TargetFrameworks>net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;net6.0;net7.0</TargetFrameworks>
     <OutputType>Library</OutputType>
     <RootNamespace>LibreMetaverse.Tests</RootNamespace>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
diff --git a/LibreMetaverse.Types/LibreMetaverse.Types.csproj b/LibreMetaverse.Types/LibreMetaverse.Types.csproj
index 8a6abd8a..a78282b1 100644
--- a/LibreMetaverse.Types/LibreMetaverse.Types.csproj
+++ b/LibreMetaverse.Types/LibreMetaverse.Types.csproj
@@ -3,7 +3,7 @@
     <AssemblyName>LibreMetaverse.Types</AssemblyName>
 	<PackageId>LibreMetaverse.Types</PackageId>
 	<Description>LibreMetaverse type library</Description>
-    <TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.1;net6.0;net7.0</TargetFrameworks>
     <OutputType>Library</OutputType>
     <RootNamespace>LibreMetaverse</RootNamespace>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
diff --git a/LibreMetaverse.Utilities/LibreMetaverse.Utilities.csproj b/LibreMetaverse.Utilities/LibreMetaverse.Utilities.csproj
index 01f5ff47..4e4f7cd5 100644
--- a/LibreMetaverse.Utilities/LibreMetaverse.Utilities.csproj
+++ b/LibreMetaverse.Utilities/LibreMetaverse.Utilities.csproj
@@ -3,7 +3,7 @@
 	  <AssemblyName>LibreMetaverse.Utilities</AssemblyName>
       <PackageId>LibreMetaverse.Utilities</PackageId>
 	  <Description>LibreMetaverse utility library</Description>
-	  <TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
+	  <TargetFrameworks>net48;netstandard2.1;net6.0;net7.0</TargetFrameworks>
 	  <OutputType>Library</OutputType>
 	  <RootNamespace>LibreMetaverse.Utilities</RootNamespace>
 	  <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
diff --git a/LibreMetaverse.Voice/LibreMetaverse.Voice.csproj b/LibreMetaverse.Voice/LibreMetaverse.Voice.csproj
index 2eba1557..07507eca 100644
--- a/LibreMetaverse.Voice/LibreMetaverse.Voice.csproj
+++ b/LibreMetaverse.Voice/LibreMetaverse.Voice.csproj
@@ -9,7 +9,7 @@
 	<IncludeSymbols>true</IncludeSymbols>
 	<SymbolPackageFormat>snupkg</SymbolPackageFormat>
 	<NoWarn>0419,1574,1591</NoWarn>
-    <TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.1;net6.0;net7.0</TargetFrameworks>
     <Platforms>x64;x86;AnyCPU</Platforms>
 	<OutputPath>..\bin\</OutputPath>
   </PropertyGroup>
diff --git a/LibreMetaverse/LibreMetaverse.csproj b/LibreMetaverse/LibreMetaverse.csproj
index 60e8275d..afe5cde7 100644
--- a/LibreMetaverse/LibreMetaverse.csproj
+++ b/LibreMetaverse/LibreMetaverse.csproj
@@ -11,7 +11,7 @@
 	<IncludeSymbols>true</IncludeSymbols>
 	<SymbolPackageFormat>snupkg</SymbolPackageFormat>
 	<NoWarn>0419,1574,1591</NoWarn>
-    <TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.1;net6.0;net7.0</TargetFrameworks>
     <Platforms>x64;x86;AnyCPU</Platforms>
 	<OutputPath>..\bin\</OutputPath>
   </PropertyGroup>
diff --git a/PrimMesher/LibreMetaverse.PrimMesher.csproj b/PrimMesher/LibreMetaverse.PrimMesher.csproj
index c8747d65..cf88b92b 100644
--- a/PrimMesher/LibreMetaverse.PrimMesher.csproj
+++ b/PrimMesher/LibreMetaverse.PrimMesher.csproj
@@ -4,7 +4,7 @@
     <AssemblyName>LibreMetaverse.PrimMesher</AssemblyName>
 	<PackageId>LibreMetaverse.PrimMesher</PackageId>
 	<OutputType>Library</OutputType>
-    <TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.1;net6.0;net7.0</TargetFrameworks>
     <Authors>Dhalia Trimble, Sjofn LLC, OpenMetaverse Developers</Authors>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
 	<IncludeSymbols>true</IncludeSymbols>
diff --git a/Programs/VoiceTest/VoiceTest.csproj b/Programs/VoiceTest/VoiceTest.csproj
index df440c66..e1265eff 100644
--- a/Programs/VoiceTest/VoiceTest.csproj
+++ b/Programs/VoiceTest/VoiceTest.csproj
@@ -4,7 +4,7 @@
 	<OutputType>Exe</OutputType>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
     <OutputPath>..\..\bin\</OutputPath>
-    <TargetFrameworks>net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;net6.0;net7.0</TargetFrameworks>
     <Platforms>x64;x86;AnyCPU</Platforms>
 	<IsPackable>false</IsPackable>
   </PropertyGroup>
diff --git a/Programs/examples/PacketDump/PacketDump.csproj b/Programs/examples/PacketDump/PacketDump.csproj
index d1607c57..7a589a9f 100644
--- a/Programs/examples/PacketDump/PacketDump.csproj
+++ b/Programs/examples/PacketDump/PacketDump.csproj
@@ -5,7 +5,7 @@
 	<OutputType>Exe</OutputType>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
     <OutputPath>..\..\..\bin\</OutputPath>
-    <TargetFrameworks>net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;net6.0;net7.0</TargetFrameworks>
     <Platforms>AnyCPU</Platforms>
 	<IncludeSymbols>true</IncludeSymbols>
 	<SymbolPackageFormat>snupkg</SymbolPackageFormat>
diff --git a/Programs/examples/TestClient/TestClient.csproj b/Programs/examples/TestClient/TestClient.csproj
index 428dd0c0..140c40b2 100644
--- a/Programs/examples/TestClient/TestClient.csproj
+++ b/Programs/examples/TestClient/TestClient.csproj
@@ -4,7 +4,7 @@
 	<OutputType>Exe</OutputType>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
     <OutputPath>..\..\..\bin\</OutputPath>
-    <TargetFrameworks>net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net48;net6.0;net7.0</TargetFrameworks>
     <Platforms>x64;x86</Platforms>
 	<IncludeSymbols>true</IncludeSymbols>
 	<SymbolPackageFormat>snupkg</SymbolPackageFormat>
diff --git a/Programs/mapgenerator/mapgenerator.csproj b/Programs/mapgenerator/mapgenerator.csproj
index 30c1161b..113a7924 100644
--- a/Programs/mapgenerator/mapgenerator.csproj
+++ b/Programs/mapgenerator/mapgenerator.csproj
@@ -5,7 +5,7 @@
 	<GenerateAssemblyInfo>true</GenerateAssemblyInfo>
 	<OutputPath>..\..\bin\</OutputPath>
 	<PackageId>LibreMetaverse.MapGenerator</PackageId>
-	<TargetFrameworks>net6.0;net7.0</TargetFrameworks>
+	<TargetFrameworks>net48;net6.0;net7.0</TargetFrameworks>
 	<Platforms>AnyCPU</Platforms>
 	<IncludeSymbols>true</IncludeSymbols>
 	<SymbolPackageFormat>snupkg</SymbolPackageFormat>