diff --git a/.gitignore b/.gitignore
index 47d1e82..dce7d37 100644
--- a/.gitignore
+++ b/.gitignore
@@ -64,3 +64,4 @@
 /Debug/vc90.idb
 /.vs/utiles/v16/*.db
 /.vs/utiles/v16/ipch/
+/.vs/*
diff --git a/_error.cpp b/_error.cpp
index 8af8672..9973761 100644
--- a/_error.cpp
+++ b/_error.cpp
@@ -34,6 +34,12 @@ void C_error::pon_win( char *modulo )
 		NULL );
 	tipo=(int)dw;
 }
+//***********************************************************
+void C_error::pon_win(const char* modulo)
+{
+	pon_win((char*)modulo);
+}
+
 //***********************************************************
 void C_error::pon( char *mod, char *mens, int tip/*=-1*/ )
 {
diff --git a/_error.h b/_error.h
index addbae9..c6673b7 100644
--- a/_error.h
+++ b/_error.h
@@ -14,6 +14,7 @@ public:
 	//funciones-----------------------------
 	void pon(char *mod, char *mens, int tip=-1);//pone error propio
 	void pon_win(char *modulo);//pone error windows
+	void pon_win(const char* modulo);
 	void aclara(char *mens);//pone aclaracion
 	void limpia();//limpia error
 };
diff --git a/utiles.vcxproj b/utiles.vcxproj
index 0e685cd..9cbeee2 100644
--- a/utiles.vcxproj
+++ b/utiles.vcxproj
@@ -22,32 +22,32 @@
     <ProjectGuid>{AA58C828-7025-4A4C-868E-76B8902AF6BB}</ProjectGuid>
     <RootNamespace>utiles</RootNamespace>
     <Keyword>MFCDLLProj</Keyword>
-    <WindowsTargetPlatformVersion>10.0.17763.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <UseOfMfc>Dynamic</UseOfMfc>
     <CharacterSet>MultiByte</CharacterSet>
     <WholeProgramOptimization>true</WholeProgramOptimization>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <UseOfMfc>Dynamic</UseOfMfc>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <UseOfMfc>Dynamic</UseOfMfc>
     <CharacterSet>MultiByte</CharacterSet>
     <WholeProgramOptimization>true</WholeProgramOptimization>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <UseOfMfc>Dynamic</UseOfMfc>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
@@ -74,21 +74,33 @@
     <OutDir>Debug\</OutDir>
     <IntDir>$(Configuration)\</IntDir>
     <LinkIncremental>true</LinkIncremental>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules />
+    <CodeAnalysisRuleAssemblies />
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <OutDir>$(Platform)\$(Configuration)\</OutDir>
     <IntDir>$(Platform)\$(Configuration)\</IntDir>
     <LinkIncremental>true</LinkIncremental>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules />
+    <CodeAnalysisRuleAssemblies />
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <OutDir>Release\</OutDir>
     <IntDir>$(Configuration)\</IntDir>
     <LinkIncremental>false</LinkIncremental>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules />
+    <CodeAnalysisRuleAssemblies />
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <OutDir>$(Platform)\$(Configuration)\</OutDir>
     <IntDir>$(Platform)\$(Configuration)\</IntDir>
     <LinkIncremental>false</LinkIncremental>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules />
+    <CodeAnalysisRuleAssemblies />
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <Midl>
@@ -225,7 +237,7 @@ copy  $(OutDir)\utiles.lib ..\lib\$(IntDir)</Command>
     </Link>
     <PostBuildEvent>
       <Command>copy $(OutDir)$(TargetFileName) ..\BIN\$(IntDir)
-copy  $(OutDir)\utiles.lib ..\lib\$(IntDir)</Command>
+copy  $(OutDir)utiles.lib ..\lib\$(IntDir)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>