diff --git a/.appveyor.yml b/.appveyor.yml
index c26280bf..aaacc8cb 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -46,15 +46,21 @@ matrix:
     - image: Ubuntu1804
 
 for:
-- 
-  matrix:
-    only:
-      - image: Visual Studio 2019
+  - 
+    matrix:
+      only:
+        - image: Visual Studio 2019
 
-  deploy:
-    - provider: NuGet
-      name: nuget_release
-      api_key:
-        secure: WAEp9wQu4tWKiMdcfog7FWpzk7rPou8flMCYlmYy3mZ+thKwmG1ht4o4mmEE6ZLs
-      skip_symbols: true
-      artifact: /.*LibreMetaverse.*\.nupkg/
+    deploy:
+      - provider: NuGet
+        name: nuget_release
+        api_key:
+          secure: WAEp9wQu4tWKiMdcfog7FWpzk7rPou8flMCYlmYy3mZ+thKwmG1ht4o4mmEE6ZLs
+        skip_symbols: true
+        artifact: /.*LibreMetaverse.*\.nupkg/
+  -
+    matrix:
+      only:
+        - image: Ubuntu1804
+      
+    configuration: ReleaseNoGui
diff --git a/LibreMetaverse.sln b/LibreMetaverse.sln
index 60f4a192..28081ab0 100644
--- a/LibreMetaverse.sln
+++ b/LibreMetaverse.sln
@@ -41,72 +41,103 @@ Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
 		Release|Any CPU = Release|Any CPU
+		ReleaseNoGui|Any CPU = ReleaseNoGui|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{95F42663-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{95F42663-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{95F42663-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{95F42663-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{95F42663-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
 		{79B51DAA-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{79B51DAA-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{79B51DAA-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{79B51DAA-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{79B51DAA-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{79B51DAA-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{89049BBC-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{89049BBC-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{89049BBC-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{89049BBC-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{89049BBC-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{89049BBC-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{27C70F3A-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{27C70F3A-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{27C70F3A-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{27C70F3A-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{27C70F3A-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{27C70F3A-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{09C292AF-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{09C292AF-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{09C292AF-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{09C292AF-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{09C292AF-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
 		{95479B1D-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{95479B1D-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{95479B1D-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{95479B1D-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{95479B1D-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{95479B1D-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{29E206AC-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{29E206AC-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{29E206AC-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{29E206AC-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{29E206AC-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{29E206AC-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{89D7A3E5-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{89D7A3E5-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{89D7A3E5-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{89D7A3E5-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{89D7A3E5-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{89D7A3E5-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{0CCC2C3D-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{0CCC2C3D-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{0CCC2C3D-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{0CCC2C3D-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{0CCC2C3D-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{0CCC2C3D-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{1266CE08-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{1266CE08-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1266CE08-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{1266CE08-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{1266CE08-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{1266CE08-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{B37B02AD-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{B37B02AD-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{B37B02AD-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{B37B02AD-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B37B02AD-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{B37B02AD-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{58443010-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{58443010-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{58443010-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{58443010-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{58443010-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{58443010-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{9F71FDB3-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{9F71FDB3-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9F71FDB3-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{9F71FDB3-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9F71FDB3-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{9F71FDB3-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{EE4EA934-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{EE4EA934-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{EE4EA934-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{EE4EA934-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EE4EA934-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{EE4EA934-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{2E2B643F-F18B-4791-BA4B-6E82D0E794B6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{2E2B643F-F18B-4791-BA4B-6E82D0E794B6}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2E2B643F-F18B-4791-BA4B-6E82D0E794B6}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{2E2B643F-F18B-4791-BA4B-6E82D0E794B6}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2E2B643F-F18B-4791-BA4B-6E82D0E794B6}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{2E2B643F-F18B-4791-BA4B-6E82D0E794B6}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 		{2867B4B3-0000-0000-0000-000000000000}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{2867B4B3-0000-0000-0000-000000000000}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2867B4B3-0000-0000-0000-000000000000}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{2867B4B3-0000-0000-0000-000000000000}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2867B4B3-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.ActiveCfg = Release|Any CPU
+		{2867B4B3-0000-0000-0000-000000000000}.ReleaseNoGui|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE