diff --git a/external/3rd/library/soePlatform/VChatAPI/utils2.0/utils/UdpLibrary/UdpLibrary.cpp b/external/3rd/library/soePlatform/VChatAPI/utils2.0/utils/UdpLibrary/UdpLibrary.cpp
index 8491e533..f8221166 100644
--- a/external/3rd/library/soePlatform/VChatAPI/utils2.0/utils/UdpLibrary/UdpLibrary.cpp
+++ b/external/3rd/library/soePlatform/VChatAPI/utils2.0/utils/UdpLibrary/UdpLibrary.cpp
@@ -2677,8 +2677,7 @@ void UdpConnection::FlushMultiBuffer()
 
 int UdpConnection::EncryptNone(uchar *destData, const uchar *sourceData, int sourceLen)
 {
-	memcpy(destData, sourceData, sourceLen);
-	return(sourceLen);
+	return(DecryptNone(destData, sourceData, sourceLen));
 }
 
 int UdpConnection::DecryptNone(uchar *destData, const uchar *sourceData, int sourceLen)
@@ -4153,7 +4152,7 @@ int UdpMisc::Random(int *seed)
 	return(*seed);
 }
 
-long UdpMisc::Crc32(const void *buffer, int bufferLen, int encryptValue)
+unsigned long int  UdpMisc::Crc32(const void *buffer, int bufferLen, int encryptValue)
 {
 	static unsigned crc32_table[256] = { 
 	0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F,
@@ -4200,7 +4199,7 @@ long UdpMisc::Crc32(const void *buffer, int bufferLen, int encryptValue)
 	0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
 	0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D};
 
-	long crc = 0xffffffff;
+	unsigned long int crc = 0xffffffff;
 	crc = ((crc >> 8) & 0x00FFFFFFL) ^ crc32_table[(crc ^ (encryptValue & 0xff)) & 0x000000FFL];
 	crc = ((crc >> 8) & 0x00FFFFFFL) ^ crc32_table[(crc ^ ((encryptValue >> 8) & 0xff)) & 0x000000FFL];
 	crc = ((crc >> 8) & 0x00FFFFFFL) ^ crc32_table[(crc ^ ((encryptValue >> 16) & 0xff)) & 0x000000FFL];
diff --git a/external/3rd/library/soePlatform/VChatAPI/utils2.0/utils/UdpLibrary/UdpLibrary.hpp b/external/3rd/library/soePlatform/VChatAPI/utils2.0/utils/UdpLibrary/UdpLibrary.hpp
index 0a190f3c..27fc28d1 100644
--- a/external/3rd/library/soePlatform/VChatAPI/utils2.0/utils/UdpLibrary/UdpLibrary.hpp
+++ b/external/3rd/library/soePlatform/VChatAPI/utils2.0/utils/UdpLibrary/UdpLibrary.hpp
@@ -126,7 +126,7 @@ class UdpMisc
 		static int ClockElapsed(ClockStamp stamp);					// returns a elapsed time since stamp in milliseconds (if elapsed is over 23 days, it returns 23 days)
 		static int ClockDiff(ClockStamp start, ClockStamp stop);	// returns a time difference in milliseconds (if difference is over 23 days, it returns 23 days)
 
-		static long Crc32(const void *buffer, int bufferLen, int encryptValue = 0);				// calculate a 32-bit crc for a buffer (encrypt value simple scrambles the crc at the beginning so the same packet doesn't produce the same crc on different connections)
+		static unsigned long int Crc32(const void *buffer, int bufferLen, int encryptValue = 0);				// calculate a 32-bit crc for a buffer (encrypt value simple scrambles the crc at the beginning so the same packet doesn't produce the same crc on different connections)
 		static int Random(int *seed);								// random number generator
 		static void Sleep(int milliseconds);