diff --git a/include/amuse/SoundMacroState.hpp b/include/amuse/SoundMacroState.hpp
index 8e0345f..f6fcf13 100644
--- a/include/amuse/SoundMacroState.hpp
+++ b/include/amuse/SoundMacroState.hpp
@@ -7,6 +7,10 @@
 #include "Entity.hpp"
 #include "Common.hpp"
 
+/* Squelch Win32 macro pollution >.< */
+#undef SendMessage
+#undef GetMessage
+
 namespace amuse
 {
 class Voice;
diff --git a/lib/AudioGroupData.cpp b/lib/AudioGroupData.cpp
index 5104153..7fc25c1 100644
--- a/lib/AudioGroupData.cpp
+++ b/lib/AudioGroupData.cpp
@@ -14,7 +14,7 @@ IntrusiveAudioGroupData::~IntrusiveAudioGroupData()
     }
 }
 
-IntrusiveAudioGroupData::IntrusiveAudioGroupData(IntrusiveAudioGroupData&& other)
+IntrusiveAudioGroupData::IntrusiveAudioGroupData(IntrusiveAudioGroupData&& other) noexcept
 : AudioGroupData(other.m_proj, other.m_projSz, other.m_pool, other.m_poolSz, other.m_sdir, other.m_sdirSz, other.m_samp,
                  other.m_sampSz, other.m_fmt, other.m_absOffs)
 {
@@ -22,7 +22,7 @@ IntrusiveAudioGroupData::IntrusiveAudioGroupData(IntrusiveAudioGroupData&& other
     other.m_owns = false;
 }
 
-IntrusiveAudioGroupData& IntrusiveAudioGroupData::operator=(IntrusiveAudioGroupData&& other)
+IntrusiveAudioGroupData& IntrusiveAudioGroupData::operator=(IntrusiveAudioGroupData&& other) noexcept
 {
     if (m_owns)
     {
diff --git a/lib/AudioGroupPool.cpp b/lib/AudioGroupPool.cpp
index cdfc6b4..917461f 100644
--- a/lib/AudioGroupPool.cpp
+++ b/lib/AudioGroupPool.cpp
@@ -73,7 +73,7 @@ AudioGroupPool::AudioGroupPool(const unsigned char* data)
             uint32_t count = SBig(*reinterpret_cast<const uint32_t*>(cur + 8));
             mappingsOut.reserve(count);
             const unsigned char* subcur = cur + 12;
-            for (int i = 0; i < count; ++i)
+            for (uint32_t i = 0; i < count; ++i)
                 mappingsOut.push_back(reinterpret_cast<const LayerMapping*>(subcur + i * 12));
 
             cur += size;
@@ -133,7 +133,7 @@ AudioGroupPool::AudioGroupPool(const unsigned char* data, PCDataTag)
             uint32_t count = *reinterpret_cast<const uint32_t*>(cur + 8);
             mappingsOut.reserve(count);
             const unsigned char* subcur = cur + 12;
-            for (int i = 0; i < count; ++i)
+            for (uint32_t i = 0; i < count; ++i)
                 mappingsOut.push_back(reinterpret_cast<const LayerMapping*>(subcur + i * 12));
 
             cur += size;
diff --git a/lib/DSPCodec.c b/lib/DSPCodec.c
index bbe106f..b3000ce 100644
--- a/lib/DSPCodec.c
+++ b/lib/DSPCodec.c
@@ -11,7 +11,7 @@ unsigned DSPDecompressFrame(int16_t* out, const uint8_t* in,
     int32_t factor2 = coefs[cIdx][1];
     uint8_t exp = in[0] & 0xf;
     unsigned ret = 0;
-    for (int s=0 ; s<14 && s<lastSample ; ++s)
+    for (unsigned s=0 ; s<14 && s<lastSample ; ++s)
     {
         int32_t sampleData = (s&1)?
         NibbleToInt[(in[s/2+1])&0xf]:
@@ -41,7 +41,7 @@ unsigned DSPDecompressFrameStereoStride(int16_t* out, const uint8_t* in,
     int32_t factor2 = coefs[cIdx][1];
     uint32_t exp = in[0] & 0xf;
     unsigned ret = 0;
-    for (int s=0 ; s<14 && s<lastSample ; ++s)
+    for (unsigned s=0 ; s<14 && s<lastSample ; ++s)
     {
         int32_t sampleData = (s&1)?
         NibbleToInt[(in[s/2+1])&0xf]:
@@ -71,7 +71,7 @@ unsigned DSPDecompressFrameStereoDupe(int16_t* out, const uint8_t* in,
     int32_t factor2 = coefs[cIdx][1];
     uint8_t exp = in[0] & 0xf;
     unsigned ret = 0;
-    for (int s=0 ; s<14 && s<lastSample ; ++s)
+    for (unsigned s=0 ; s<14 && s<lastSample ; ++s)
     {
         int32_t sampleData = (s&1)?
         NibbleToInt[(in[s/2+1])&0xf]:
@@ -102,7 +102,7 @@ unsigned DSPDecompressFrameRanged(int16_t* out, const uint8_t* in,
     int32_t factor2 = coefs[cIdx][1];
     uint8_t exp = in[0] & 0xf;
     unsigned ret = 0;
-    for (int s=firstSample ; s<14 && s<lastSample ; ++s)
+    for (unsigned s=firstSample ; s<14 && s<lastSample ; ++s)
     {
         int32_t sampleData = (s&1)?
         NibbleToInt[(in[s/2+1])&0xf]:
@@ -132,7 +132,7 @@ unsigned DSPDecompressFrameStateOnly(const uint8_t* in,
     int32_t factor2 = coefs[cIdx][1];
     uint8_t exp = in[0] & 0xf;
     unsigned ret = 0;
-    for (int s=0 ; s<14 && s<lastSample ; ++s)
+    for (unsigned s=0 ; s<14 && s<lastSample ; ++s)
     {
         int32_t sampleData = (s&1)?
         NibbleToInt[(in[s/2+1])&0xf]:
diff --git a/lib/EffectDelay.cpp b/lib/EffectDelay.cpp
index c5dd21b..dfc5a8e 100644
--- a/lib/EffectDelay.cpp
+++ b/lib/EffectDelay.cpp
@@ -58,10 +58,10 @@ void EffectDelayImp<T>::applyEffect(T* audio, size_t frameCount, const ChannelMa
 
     for (size_t f = 0; f < frameCount;)
     {
-        for (int c = 0; c < chanMap.m_channelCount; ++c)
+        for (unsigned c = 0; c < chanMap.m_channelCount; ++c)
         {
             T* chanAud = audio + c;
-            for (int i = 0; i < m_blockSamples && f < frameCount; ++i, ++f)
+            for (unsigned i = 0; i < m_blockSamples && f < frameCount; ++i, ++f)
             {
                 T& liveSamp = chanAud[chanMap.m_channelCount * i];
                 T& samp = x30_chanLines[c][xc_currentPos[c] * m_blockSamples + i];
diff --git a/lib/SongConverter.cpp b/lib/SongConverter.cpp
index f901902..18aaba2 100644
--- a/lib/SongConverter.cpp
+++ b/lib/SongConverter.cpp
@@ -1324,7 +1324,7 @@ std::vector<uint8_t> SongConverter::MIDIToSong(const std::vector<uint8_t>& data,
                     reg.m_progNum = 0xff;
                     reg.m_unk1 = 0xff;
                     reg.m_unk2 = 0;
-                    reg.m_regionIndex = 0xffff;
+                    reg.m_regionIndex = -1;
                     reg.m_unk3 = 0;
                 }
                 else
@@ -1333,7 +1333,7 @@ std::vector<uint8_t> SongConverter::MIDIToSong(const std::vector<uint8_t>& data,
                     reg.m_progNum = 0xff;
                     reg.m_unk1 = 0xff;
                     reg.m_unk2 = 0;
-                    reg.m_regionIndex = 0xffff;
+                    reg.m_regionIndex = -1;
                     reg.m_unk3 = 0;
                 }
             }
diff --git a/lib/SongState.cpp b/lib/SongState.cpp
index db4a4e7..53c8137 100644
--- a/lib/SongState.cpp
+++ b/lib/SongState.cpp
@@ -372,7 +372,7 @@ bool SongState::Track::advance(Sequencer& seq, int32_t ticks)
     while (m_nextRegion->indexValid(m_parent.m_bigEndian))
     {
         uint32_t nextRegTick = (m_parent.m_bigEndian ? SBig(m_nextRegion->m_startTick) : m_nextRegion->m_startTick);
-        if (endTick > nextRegTick)
+        if (uint32_t(endTick) > nextRegTick)
             advanceRegion(&seq);
         else
             break;