diff --git a/oscpack/ip/IpEndpointName.cpp b/oscpack/ip/IpEndpointName.cpp
index 50b0262..d1c3b18 100644
--- a/oscpack/ip/IpEndpointName.cpp
+++ b/oscpack/ip/IpEndpointName.cpp
@@ -50,9 +50,11 @@ unsigned long IpEndpointName::GetHostByName( const char *s )
 void IpEndpointName::AddressAsString( char *s ) const
 {
 	if( address == ANY_ADDRESS ){
-		std::sprintf( s, "<any>" );
+		//std::sprintf( s, "<any>" );
+		sprintf_s(s, ADDRESS_STRING_LENGTH, "<any>");
 	}else{
-		std::sprintf( s, "%d.%d.%d.%d",
+		//std::sprintf( s, "%d.%d.%d.%d",
+		sprintf_s(s, ADDRESS_STRING_LENGTH, "%d.%d.%d.%d", 
 				(int)((address >> 24) & 0xFF),
 				(int)((address >> 16) & 0xFF),
 				(int)((address >> 8) & 0xFF),
@@ -65,9 +67,11 @@ void IpEndpointName::AddressAndPortAsString( char *s ) const
 {
 	if( port == ANY_PORT ){
 		if( address == ANY_ADDRESS ){
-			std::sprintf( s, "<any>:<any>" );
+			//std::sprintf( s, "<any>:<any>" );
+			sprintf_s(s, ADDRESS_AND_PORT_STRING_LENGTH, "<any>:<any>");
 		}else{
-			std::sprintf( s, "%d.%d.%d.%d:<any>",
+			//std::sprintf( s, "%d.%d.%d.%d:<any>",
+			sprintf_s(s, ADDRESS_AND_PORT_STRING_LENGTH, "%d.%d.%d.%d:<any>", 
 				(int)((address >> 24) & 0xFF),
 				(int)((address >> 16) & 0xFF),
 				(int)((address >> 8) & 0xFF),
@@ -75,9 +79,11 @@ void IpEndpointName::AddressAndPortAsString( char *s ) const
 		}
 	}else{
 		if( address == ANY_ADDRESS ){
-			std::sprintf( s, "<any>:%d", port );
+			//std::sprintf( s, "<any>:%d", port );
+			sprintf_s(s, ADDRESS_AND_PORT_STRING_LENGTH, "<any>:%d", port);
 		}else{
-			std::sprintf( s, "%d.%d.%d.%d:%d",
+			//std::sprintf( s, "%d.%d.%d.%d:%d",
+			sprintf_s(s, ADDRESS_AND_PORT_STRING_LENGTH, "%d.%d.%d.%d:%d", 
 				(int)((address >> 24) & 0xFF),
 				(int)((address >> 16) & 0xFF),
 				(int)((address >> 8) & 0xFF),
diff --git a/oscpack/osc/OscOutboundPacketStream.cpp b/oscpack/osc/OscOutboundPacketStream.cpp
index b474b4f..8491e94 100644
--- a/oscpack/osc/OscOutboundPacketStream.cpp
+++ b/oscpack/osc/OscOutboundPacketStream.cpp
@@ -360,8 +360,9 @@ OutboundPacketStream& OutboundPacketStream::operator<<( const BeginMessage& rhs
 
     messageCursor_ = BeginElement( messageCursor_ );
 
-    std::strcpy( messageCursor_, rhs.addressPattern );
+    //std::strcpy( messageCursor_, rhs.addressPattern );
     std::size_t rhsLength = std::strlen(rhs.addressPattern);
+    strcpy_s(messageCursor_, rhsLength, rhs.addressPattern);
     messageCursor_ += rhsLength + 1;
 
     // zero pad to 4-byte boundary
@@ -602,8 +603,9 @@ OutboundPacketStream& OutboundPacketStream::operator<<( const char *rhs )
     CheckForAvailableArgumentSpace( RoundUp4(std::strlen(rhs) + 1) );
 
     *(--typeTagsCurrent_) = STRING_TYPE_TAG;
-    std::strcpy( argumentCurrent_, rhs );
+    //std::strcpy( argumentCurrent_, rhs );
     std::size_t rhsLength = std::strlen(rhs);
+    strcpy_s(argumentCurrent_, rhsLength, rhs);
     argumentCurrent_ += rhsLength + 1;
 
     // zero pad to 4-byte boundary
@@ -622,8 +624,9 @@ OutboundPacketStream& OutboundPacketStream::operator<<( const Symbol& rhs )
     CheckForAvailableArgumentSpace( RoundUp4(std::strlen(rhs) + 1) );
 
     *(--typeTagsCurrent_) = SYMBOL_TYPE_TAG;
-    std::strcpy( argumentCurrent_, rhs );
+    //std::strcpy( argumentCurrent_, rhs );
     std::size_t rhsLength = std::strlen(rhs);
+    strcpy_s(argumentCurrent_, rhsLength, rhs);
     argumentCurrent_ += rhsLength + 1;
 
     // zero pad to 4-byte boundary
diff --git a/oscpack/osc/OscPrintReceivedElements.cpp b/oscpack/osc/OscPrintReceivedElements.cpp
index bc1689b..aed1de8 100644
--- a/oscpack/osc/OscPrintReceivedElements.cpp
+++ b/oscpack/osc/OscPrintReceivedElements.cpp
@@ -126,11 +126,14 @@ std::ostream& operator<<( std::ostream & os,
                 std::time_t t =
                         (unsigned long)( arg.AsTimeTagUnchecked() >> 32 );
 
-                const char *timeString = std::ctime( &t );
-                size_t len = std::strlen( timeString );
+                //const char *timeString = std::ctime( &t );
+
+                const size_t len = 26; //26 chars needed for ctime_s
+                char timeString[len];
+                errno_t err = ctime_s(timeString, len, &t);
 
                 // -1 to omit trailing newline from string returned by ctime()
-                if( len > 1 )
+                if( !err )
                     os.write( timeString, len - 1 );
             }
             break;
diff --git a/oscpack/oscpack.vcxproj b/oscpack/oscpack.vcxproj
index 4e46eb0..c83cc76 100644
--- a/oscpack/oscpack.vcxproj
+++ b/oscpack/oscpack.vcxproj
@@ -121,7 +121,7 @@
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
       <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>_DEBUG;_LIB;__WIN32__;_WINSOCK_DEPRECATED_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_LIB;__WIN32__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>