regenerate projects
diff --git a/vsprojects/grpc_protoc_plugins.sln b/vsprojects/grpc_protoc_plugins.sln
index be3ccf9..d1ce78c 100644
--- a/vsprojects/grpc_protoc_plugins.sln
+++ b/vsprojects/grpc_protoc_plugins.sln
@@ -4,28 +4,46 @@
 VisualStudioVersion = 12.0.21005.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc_plugin_support", "grpc_plugin_support\grpc_plugin_support.vcxproj", "{B6E81D84-2ACB-41B8-8781-493A944C7817}"
+	ProjectSection(myProperties) = preProject
+        	lib = "True"
+	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc_cpp_plugin", "grpc_cpp_plugin\grpc_cpp_plugin.vcxproj", "{7E51A25F-AC59-488F-906C-C60FAAE706AA}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
 	ProjectSection(ProjectDependencies) = postProject
 		{B6E81D84-2ACB-41B8-8781-493A944C7817} = {B6E81D84-2ACB-41B8-8781-493A944C7817}
 	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc_csharp_plugin", "grpc_csharp_plugin\grpc_csharp_plugin.vcxproj", "{3C813052-A49A-4662-B90A-1ADBEC7EE453}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
 	ProjectSection(ProjectDependencies) = postProject
 		{B6E81D84-2ACB-41B8-8781-493A944C7817} = {B6E81D84-2ACB-41B8-8781-493A944C7817}
 	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc_objective_c_plugin", "grpc_objective_c_plugin\grpc_objective_c_plugin.vcxproj", "{19564640-CEE6-4921-ABA5-676ED79A36F6}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
 	ProjectSection(ProjectDependencies) = postProject
 		{B6E81D84-2ACB-41B8-8781-493A944C7817} = {B6E81D84-2ACB-41B8-8781-493A944C7817}
 	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc_python_plugin", "grpc_python_plugin\grpc_python_plugin.vcxproj", "{DF52D501-A6CF-4E6F-BA38-6EBE2E8DAFB2}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
 	ProjectSection(ProjectDependencies) = postProject
 		{B6E81D84-2ACB-41B8-8781-493A944C7817} = {B6E81D84-2ACB-41B8-8781-493A944C7817}
 	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc_ruby_plugin", "grpc_ruby_plugin\grpc_ruby_plugin.vcxproj", "{069E9D05-B78B-4751-9252-D21EBAE7DE8E}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
 	ProjectSection(ProjectDependencies) = postProject
 		{B6E81D84-2ACB-41B8-8781-493A944C7817} = {B6E81D84-2ACB-41B8-8781-493A944C7817}
 	EndProjectSection