diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index cf045498b..87864a15e 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit cf045498b3feb54722745f9627502256b5159dbb
+Subproject commit 87864a15e3438b833c5f9df1a1aa44009fa25f76
diff --git a/config.json b/config.json
index e9781b23e..74ccfb877 100644
--- a/config.json
+++ b/config.json
@@ -2,7 +2,8 @@
 	"ProviderTypes": {
 		"OsInformationProvider": "MatterHackers.Agg.Platform.WinformsInformationProvider, agg_platform_win32",
 		"DialogProvider": "MatterHackers.Agg.Platform.WinformsFileDialogProvider, agg_platform_win32",
-		"SystemWindowProvider": "MatterHackers.Agg.UI.OpenGLSystemWindow, agg_platform_win32",
+		"SystemWindow": "MatterHackers.Agg.UI.OpenGLSystemWindow, agg_platform_win32",
+		"SystemWindowProvider": "MatterHackers.Agg.UI.WinformsSystemWindowProvider, agg_platform_win32",
 		"ImageIOProvider": "MatterHackers.Agg.Image.ImageIOWindowsPlugin, agg_platform_win32",
 		"StaticDataProvider": "MatterHackers.Agg.FileSystemStaticData, agg_platform_win32"
 	}