diff --git a/src/Config.h b/src/Config.h
index 5793fd81c3..85de649e2d 100644
--- a/src/Config.h
+++ b/src/Config.h
@@ -64,7 +64,7 @@ public:
 	bool						LEDGER_CREATOR;     // should be false unless we are starting a new ledger
 
 	// Note: The following parameters do not relate to the UNL or trust at all
-	int							NETWORK_QUORUM;			// Minimum number of nodes to consider the network present
+	unsigned int				NETWORK_QUORUM;			// Minimum number of nodes to consider the network present
 	int							VALIDATION_QUORUM;		// Minimum validations to consider ledger authoritative
 
 	// Peer networking parameters
@@ -74,7 +74,7 @@ public:
 	std::string					PEER_SSL_CIPHER_LIST;
 	int							PEER_SCAN_INTERVAL_MIN;
 	int							PEER_START_MAX;
-	int							PEER_CONNECT_LOW_WATER;
+	unsigned int				PEER_CONNECT_LOW_WATER;
 
 	// Websocket networking parameters
 	std::string					WEBSOCKET_IP;
diff --git a/src/ECIES.cpp b/src/ECIES.cpp
index 447794f93a..b4c417f111 100644
--- a/src/ECIES.cpp
+++ b/src/ECIES.cpp
@@ -138,7 +138,7 @@ std::vector<unsigned char> CKey::encryptECIES(CKey& otherKey, const std::vector<
 	secret.zero();
 
 	std::vector<unsigned char> out(plaintext.size() + ECIES_HMAC_SIZE + ECIES_ENC_KEY_SIZE + ECIES_ENC_BLK_SIZE, 0);
-	int len = 0, bytesWritten;
+	unsigned int len = 0, bytesWritten;
 
 	// output IV
 	memcpy(&(out.front()), iv.begin(), ECIES_ENC_BLK_SIZE);
diff --git a/src/LedgerAcquire.cpp b/src/LedgerAcquire.cpp
index ffd82a7f83..290c2afc7b 100644
--- a/src/LedgerAcquire.cpp
+++ b/src/LedgerAcquire.cpp
@@ -109,7 +109,7 @@ void LedgerAcquire::done()
 	mOnComplete.empty();
 	mLock.unlock();
 
-	for (int i = 0; i < triggers.size(); ++i)
+	for (unsigned int i = 0; i < triggers.size(); ++i)
 		triggers[i](shared_from_this());
 }
 
diff --git a/src/LedgerIndex.cpp b/src/LedgerIndex.cpp
index ac059297c9..1bcf17062f 100644
--- a/src/LedgerIndex.cpp
+++ b/src/LedgerIndex.cpp
@@ -5,8 +5,8 @@
 uint256 Ledger::getQualityIndex(const uint256& uBase, const uint64 uNodeDir)
 {
 	// Indexes are stored in big endian format: they print as hex as stored.
-	// Most significant bytes are first.  Least significant bytes repesent adjcent entries.
-	// We place uNodeDir in the 8 right most bytes to be adjcent.
+	// Most significant bytes are first.  Least significant bytes represent adjacent entries.
+	// We place uNodeDir in the 8 right most bytes to be adjacent.
 	// Want uNodeDir in big endian format so ++ goes to the next entry for indexes.
 	uint256	uNode(uBase);
 
diff --git a/src/NetworkOPs.cpp b/src/NetworkOPs.cpp
index f523274ba3..c5d89decab 100644
--- a/src/NetworkOPs.cpp
+++ b/src/NetworkOPs.cpp
@@ -131,7 +131,7 @@ int NetworkOPs::findTransactionsBySource(const uint256& uLedger, std::list<Trans
 	if (maxSeq > minSeq) return 0;
 
 	int count = 0;
-	for(int i = minSeq; i <= maxSeq; ++i)
+	for(unsigned int i = minSeq; i <= maxSeq; ++i)
 	{
 		Transaction::pointer txn = Transaction::findFrom(sourceAccount, i);
 		if(txn)
diff --git a/src/Peer.cpp b/src/Peer.cpp
index b992823b58..d92a0328ff 100644
--- a/src/Peer.cpp
+++ b/src/Peer.cpp
@@ -799,7 +799,7 @@ void Peer::recvGetPeers(newcoin::TMGetPeers& packet)
 	{
 		newcoin::TMPeers peers;
 
-		for (int n=0; n<addrs.size(); n++)
+		for (unsigned int n=0; n<addrs.size(); n++)
 		{
 			std::string strIP;
 			int			iPort;
diff --git a/src/SHAMapSync.cpp b/src/SHAMapSync.cpp
index 763dd15147..a8d668cc61 100644
--- a/src/SHAMapSync.cpp
+++ b/src/SHAMapSync.cpp
@@ -51,7 +51,7 @@ void SHAMap::getMissingNodes(std::vector<SHAMapNode>& nodeIDs, std::vector<uint2
 				{
 					d = getNode(childID, childHash, false);
 				}
-				catch (SHAMapMissingNode& mn)
+				catch (SHAMapMissingNode& )
 				{ // node is not in the map
 					if (filter != NULL)
 					{
diff --git a/src/bignum.h b/src/bignum.h
index 74c87aa73f..78bce87609 100644
--- a/src/bignum.h
+++ b/src/bignum.h
@@ -194,7 +194,7 @@ public:
 	uint256 getuint256()
 	{
 		uint256 ret;
-		int size = BN_num_bytes(this);
+		unsigned int size = BN_num_bytes(this);
 		if (size > ret.size())
 			return ret;
 		BN_bn2bin(this, ret.begin() + (ret.size() - BN_num_bytes(this)));
diff --git a/src/utils.cpp b/src/utils.cpp
index 327a991854..d4edb37482 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -199,6 +199,11 @@ uint64_t htobe64(uint64_t value)
 	//}
 }
 
+uint64_t be64toh(uint64_t value)
+{
+	return(value);
+}
+
 #endif
 
 // vim:ts=4
diff --git a/src/utils.h b/src/utils.h
index 0e1fead5cc..9e4167f5cb 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -24,6 +24,7 @@
 
 #ifdef WIN32
 extern uint64_t htobe64(uint64_t value);
+extern uint64_t be64toh(uint64_t value);
 #endif
 
 #define vt_f_black          "\033[30m"