diff --git a/src/BlockArea.cpp b/src/BlockArea.cpp
index dd8e0da31..910661f60 100644
--- a/src/BlockArea.cpp
+++ b/src/BlockArea.cpp
@@ -828,7 +828,7 @@ void cBlockArea::RelLine(int a_RelX1, int a_RelY1, int a_RelZ1, int a_RelX2, int
 		int yd = dy - dx / 2;
 		int zd = dz - dx / 2;
 
-		while (true)
+		for (;;)
 		{
 			RelSetData(a_RelX1, a_RelY1, a_RelZ1, a_DataTypes, a_BlockType, a_BlockMeta, a_BlockLight, a_BlockSkyLight);
 
@@ -860,7 +860,7 @@ void cBlockArea::RelLine(int a_RelX1, int a_RelY1, int a_RelZ1, int a_RelX2, int
 		int xd = dx - dy / 2;
 		int zd = dz - dy / 2;
 
-		while (true)
+		for (;;)
 		{
 			RelSetData(a_RelX1, a_RelY1, a_RelZ1, a_DataTypes, a_BlockType, a_BlockMeta, a_BlockLight, a_BlockSkyLight);
 
@@ -894,7 +894,7 @@ void cBlockArea::RelLine(int a_RelX1, int a_RelY1, int a_RelZ1, int a_RelX2, int
 		int xd = dx - dz / 2;
 		int yd = dy - dz / 2;
 
-		while (true)
+		for (;;)
 		{
 			RelSetData(a_RelX1, a_RelY1, a_RelZ1, a_DataTypes, a_BlockType, a_BlockMeta, a_BlockLight, a_BlockSkyLight);
 
diff --git a/src/Generating/Caves.cpp b/src/Generating/Caves.cpp
index df45bb4c2..c94113f5c 100644
--- a/src/Generating/Caves.cpp
+++ b/src/Generating/Caves.cpp
@@ -285,7 +285,7 @@ bool cCaveTunnel::RefineDefPoints(const cCaveDefPoints & a_Src, cCaveDefPoints &
 void cCaveTunnel::Smooth(void)
 {
 	cCaveDefPoints Pts;
-	while (true)
+	for (;;)
 	{
 		if (!RefineDefPoints(m_Points, Pts))
 		{
@@ -331,7 +331,7 @@ void cCaveTunnel::FinishLinear(void)
 			int yd = dy - dx / 2;
 			int zd = dz - dx / 2;
 
-			while (true)
+			for (;;)
 			{
 				m_Points.push_back(cCaveDefPoint(PrevX, PrevY, PrevZ, R));
 
@@ -363,7 +363,7 @@ void cCaveTunnel::FinishLinear(void)
 			int xd = dx - dy / 2;
 			int zd = dz - dy / 2;
 
-			while (true)
+			for (;;)
 			{
 				m_Points.push_back(cCaveDefPoint(PrevX, PrevY, PrevZ, R));
 
@@ -397,7 +397,7 @@ void cCaveTunnel::FinishLinear(void)
 			int xd = dx - dz / 2;
 			int yd = dy - dz / 2;
 
-			while (true)
+			for (;;)
 			{
 				m_Points.push_back(cCaveDefPoint(PrevX, PrevY, PrevZ, R));
 
diff --git a/src/Generating/DistortedHeightmap.cpp b/src/Generating/DistortedHeightmap.cpp
index 15e352e30..eb9fe92ba 100644
--- a/src/Generating/DistortedHeightmap.cpp
+++ b/src/Generating/DistortedHeightmap.cpp
@@ -774,10 +774,11 @@ void cDistortedHeightmap::ComposeColumn(cChunkDesc & a_ChunkDesc, int a_RelX, in
 			return;
 		}
 		default:
+		{
 			ASSERT(!"Unhandled biome");
 			return;
+		}
 	}  // switch (Biome)
-	ASSERT(!"Unexpected fallthrough");
 }
 
 
diff --git a/src/Generating/FinishGen.cpp b/src/Generating/FinishGen.cpp
index 866551e8a..145fe22e0 100644
--- a/src/Generating/FinishGen.cpp
+++ b/src/Generating/FinishGen.cpp
@@ -528,7 +528,7 @@ cFinishGenFluidSprings::cFinishGenFluidSprings(int a_Seed, BLOCKTYPE a_Fluid, cI
 	bool IsWater = (a_Fluid == E_BLOCK_WATER);
 	AString SectionName = IsWater ? "WaterSprings" : "LavaSprings";
 	AString DefaultHeightDistribution;
-	int DefaultChance;
+	int DefaultChance = 0;
 	switch (a_World.GetDimension())
 	{
 		case dimNether:
diff --git a/src/Items/ItemSeeds.h b/src/Items/ItemSeeds.h
index 8ca86663f..67f0d38bd 100644
--- a/src/Items/ItemSeeds.h
+++ b/src/Items/ItemSeeds.h
@@ -56,7 +56,6 @@ public:
 			case E_ITEM_SEEDS:         a_BlockType = E_BLOCK_CROPS;        return true;
 			default:                   a_BlockType = E_BLOCK_AIR;          return true;
 		}
-		return false;
 	}
 } ;
 
diff --git a/src/Protocol/Protocol132.h b/src/Protocol/Protocol132.h
index d36384a88..80fc8740a 100644
--- a/src/Protocol/Protocol132.h
+++ b/src/Protocol/Protocol132.h
@@ -14,9 +14,9 @@
 #ifdef _MSC_VER
 	#pragma warning(push)
 	#pragma warning(disable:4127)
-	#pragma warning(disable:4244)
-	#pragma warning(disable:4231)
 	#pragma warning(disable:4189)
+	#pragma warning(disable:4231)
+	#pragma warning(disable:4244)
 	#pragma warning(disable:4702)
 #endif
 
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp
index 8536689c3..7d1f723a3 100644
--- a/src/Protocol/Protocol17x.cpp
+++ b/src/Protocol/Protocol17x.cpp
@@ -983,7 +983,7 @@ void cProtocol172::AddReceivedData(const char * a_Data, int a_Size)
 	}
 	
 	// Handle all complete packets:
-	while (true)
+	for (;;)
 	{
 		UInt32 PacketLen;
 		if (!m_ReceivedData.ReadVarInt(PacketLen))
diff --git a/src/WorldStorage/FastNBT.cpp b/src/WorldStorage/FastNBT.cpp
index 64220f09a..8f80c3f75 100644
--- a/src/WorldStorage/FastNBT.cpp
+++ b/src/WorldStorage/FastNBT.cpp
@@ -16,9 +16,12 @@
 	#define NBT_RESERVE_SIZE 200
 #endif  // NBT_RESERVE_SIZE
 
-#define RETURN_FALSE_IF_FALSE(X) do { if (!X) return false; } while (0)
-
-
+#ifdef _MSC_VER
+	// Dodge a C4127 (conditional expression is constant) for this specific macro usage
+	#define RETURN_FALSE_IF_FALSE(X) do { if (!X) return false; } while ((false, false))
+#else
+	#define RETURN_FALSE_IF_FALSE(X) do { if (!X) return false; } while (false)
+#endif
 
 
 
@@ -99,7 +102,7 @@ bool cParsedNBT::ReadCompound(void)
 	// Reads the latest tag as a compound
 	int ParentIdx = m_Tags.size() - 1;
 	int PrevSibling = -1;
-	while (true)
+	for (;;)
 	{
 		NEEDBYTES(1);
 		eTagType TagType = (eTagType)(m_Data[m_Pos]);
@@ -276,7 +279,7 @@ int cParsedNBT::FindChildByName(int a_Tag, const char * a_Name, size_t a_NameLen
 	for (int Child = m_Tags[a_Tag].m_FirstChild; Child != -1; Child = m_Tags[Child].m_NextSibling)
 	{
 		if (
-			(m_Tags[Child].m_NameLength == a_NameLength) &&
+			(m_Tags[Child].m_NameLength == (int)a_NameLength) &&
 			(memcmp(m_Data + m_Tags[Child].m_NameStart, a_Name, a_NameLength) == 0)
 		)
 		{