diff --git a/source/gui/scripting/ScriptFunctions.cpp b/source/gui/scripting/ScriptFunctions.cpp
index bf59876c4e..5f559ed121 100644
--- a/source/gui/scripting/ScriptFunctions.cpp
+++ b/source/gui/scripting/ScriptFunctions.cpp
@@ -341,7 +341,7 @@ void SetCameraTarget(void* UNUSED(cbdata), float x, float y, float z)
 // Useful for testing the crashlog/stack trace code.
 int Crash(void* UNUSED(cbdata))
 {
-	MICROLOG(L"Crashing at user's request.");
+	debug_printf(L"Crashing at user's request.\n");
 	return *(int*)0;
 }
 
diff --git a/source/main.cpp b/source/main.cpp
index fcbfd43a22..a7b2b6fad4 100644
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -220,7 +220,6 @@ static bool quit = false;	// break out of main loop
 
 static void Frame()
 {
-	MICROLOG(L"Frame");
 	ogl_WarnIfError();
 
 	// get elapsed time
@@ -260,7 +259,6 @@ static void Frame()
 
 	bool is_building_archive;	// must come before PROFILE_START's {
 	PROFILE_START("build archive");
-	MICROLOG(L"build archive");
 	is_building_archive = ProgressiveBuildArchive();
 	PROFILE_END( "build archive");
 
@@ -272,13 +270,11 @@ static void Frame()
 	if(!is_building_archive)
 	{
 		PROFILE_START("reload changed files");
-		MICROLOG(L"reload changed files");
 		ReloadChangedFiles();
 		PROFILE_END( "reload changed files");
 	}
 
 	PROFILE_START("progressive load");
-	MICROLOG(L"progressive load");
 	ProgressiveLoad();
 	PROFILE_END("progressive load");
 
@@ -287,7 +283,6 @@ static void Frame()
 	PROFILE_END("renderer incremental load");
 
 	PROFILE_START("input");
-	MICROLOG(L"input");
 	PumpEvents();
 	PROFILE_END("input");
 
@@ -312,7 +307,6 @@ static void Frame()
 	ogl_WarnIfError();
 
 	PROFILE_START("gui tick");
-	MICROLOG(L"gui tick");
 	g_GUI->TickObjects();
 	PROFILE_END("gui tick");
 
@@ -364,9 +358,7 @@ static void Frame()
 	ogl_WarnIfError();
 	if(need_render)
 	{
-		MICROLOG(L"render");
 		Render();
-		MICROLOG(L"finished render");
 		PROFILE_START( "swap buffers" );
 		SDL_GL_SwapBuffers();
 		PROFILE_END( "swap buffers" );
diff --git a/source/pch/engine/precompiled.h b/source/pch/engine/precompiled.h
index 2229fcebc4..d8fb31c4f9 100644
--- a/source/pch/engine/precompiled.h
+++ b/source/pch/engine/precompiled.h
@@ -19,7 +19,7 @@
 
 // "engine"-specific PCH:
 
-#include "ps/Pyrogenesis.h"	// MICROLOG and old error system
+#include "ps/Pyrogenesis.h"	// old error system
 
 #if HAVE_PCH
 
diff --git a/source/ps/GameSetup/Config.cpp b/source/ps/GameSetup/Config.cpp
index bdc53e7542..673b3879df 100644
--- a/source/ps/GameSetup/Config.cpp
+++ b/source/ps/GameSetup/Config.cpp
@@ -176,7 +176,6 @@ static void ProcessCommandLineArgs(const CmdLineArgs& args)
 void CONFIG_Init(const CmdLineArgs& args)
 {
 	TIMER(L"CONFIG_Init");
-	MICROLOG(L"init config");
 
 	new CConfigDB;
 
diff --git a/source/ps/GameSetup/GameSetup.cpp b/source/ps/GameSetup/GameSetup.cpp
index 431b3c1a92..9a5b727304 100644
--- a/source/ps/GameSetup/GameSetup.cpp
+++ b/source/ps/GameSetup/GameSetup.cpp
@@ -194,8 +194,6 @@ void GUI_DisplayLoadProgress(int percent, const wchar_t* pending_task)
 
 void Render()
 {
-	MICROLOG(L"begin frame");
-
 	ogl_WarnIfError();
 
 	CStr skystring = "255 0 255";
@@ -291,7 +289,6 @@ void Render()
 	glPopMatrix();
 	glPopAttrib();
 
-	MICROLOG(L"end frame");
 	g_Renderer.EndFrame();
 
 	ogl_WarnIfError();
@@ -569,7 +566,6 @@ static void InitRenderer()
 	// create the material manager
 	new CMaterialManager;
 
-	MICROLOG(L"init renderer");
 	g_Renderer.Open(g_xres,g_yres);
 
 	// Setup lighting environment. Since the Renderer accesses the
@@ -591,7 +587,6 @@ static void InitRenderer()
 
 static void InitSDL()
 {
-	MICROLOG(L"init sdl");
 	if(SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER|SDL_INIT_NOPARACHUTE) < 0)
 	{
 		LOG(CLogger::Error, LOG_CATEGORY, L"SDL library initialization failed: %hs", SDL_GetError());
@@ -618,8 +613,6 @@ void EndGame()
 
 void Shutdown(int UNUSED(flags))
 {
-	MICROLOG(L"Shutdown");
-
 	EndGame();
 
 	ShutdownPs(); // Must delete g_GUI before g_ScriptingHost
@@ -689,8 +682,6 @@ void Shutdown(int UNUSED(flags))
 
 void EarlyInit()
 {
-	MICROLOG(L"EarlyInit");
-
 	// If you ever want to catch a particular allocation:
 	//_CrtSetBreakAlloc(232647);
 
@@ -724,14 +715,11 @@ static bool Autostart(const CmdLineArgs& args);
 
 void Init(const CmdLineArgs& args, int flags)
 {
-	MICROLOG(L"Init");
-
 	h_mgr_init();
 
 	// Do this as soon as possible, because it chdirs
 	// and will mess up the error reporting if anything
 	// crashes before the working directory is set.
-	MICROLOG(L"init vfs");
 	InitVfs(args);
 
 	// This must come after VFS init, which sets the current directory
@@ -770,7 +758,6 @@ void Init(const CmdLineArgs& args, int flags)
 	g_ScriptStatsTable = new CScriptStatsTable;
 	g_ProfileViewer.AddRootTable(g_ScriptStatsTable);
 
-	MICROLOG(L"init scripting");
 	InitScripting();	// before GUI
 
 	// g_ConfigDB, command line args, globals
diff --git a/source/ps/Pyrogenesis.h b/source/ps/Pyrogenesis.h
index 3bc0850e75..059f4c6fb9 100644
--- a/source/ps/Pyrogenesis.h
+++ b/source/ps/Pyrogenesis.h
@@ -24,8 +24,6 @@ Standard declarations which are included in all projects.
 #ifndef INCLUDED_PYROGENESIS
 #define INCLUDED_PYROGENESIS
 
-#define MICROLOG debug_wprintf_mem
-
 // overrides ah_translate. registered in GameSetup.cpp
 extern const wchar_t* psTranslate(const wchar_t* text);
 extern void psTranslateFree(const wchar_t* text);
diff --git a/source/renderer/Renderer.cpp b/source/renderer/Renderer.cpp
index 78e110e0d3..85387870cf 100644
--- a/source/renderer/Renderer.cpp
+++ b/source/renderer/Renderer.cpp
@@ -30,7 +30,6 @@
 #include "Renderer.h"
 #include "maths/Matrix3D.h"
 #include "maths/MathUtil.h"
-#include "ps/Pyrogenesis.h"	// MICROLOG
 #include "ps/CLogger.h"
 #include "ps/Game.h"
 #include "ps/Profile.h"
@@ -874,17 +873,14 @@ void CRenderer::RenderPatches()
 
 	// switch on wireframe if we need it
 	if (m_TerrainRenderMode==WIREFRAME) {
-		MICROLOG(L"wireframe on");
 		glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
 	}
 
 	// render all the patches, including blend pass
-	MICROLOG(L"render patch submissions");
 	m->terrainRenderer->RenderTerrain(m_Options.m_Shadows ? m->shadow : 0);
 
 	if (m_TerrainRenderMode==WIREFRAME) {
 		// switch wireframe off again
-		MICROLOG(L"wireframe off");
 		glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
 	} else if (m_TerrainRenderMode==EDGED_FACES) {
 		// edged faces: need to make a second pass over the data:
@@ -1223,7 +1219,6 @@ void CRenderer::RenderSubmissions()
 
 	if (m_Options.m_Shadows)
 	{
-		MICROLOG(L"render shadows");
 		RenderShadowMap();
 	}
 
@@ -1243,7 +1238,6 @@ void CRenderer::RenderSubmissions()
 	}
 
 	// render submitted patches and models
-	MICROLOG(L"render patches");
 	RenderPatches();
 	ogl_WarnIfError();
 
@@ -1263,24 +1257,20 @@ void CRenderer::RenderSubmissions()
 	PROFILE_END("render overlays");
 	ogl_WarnIfError();
 
-	MICROLOG(L"render models");
 	RenderModels();
 	ogl_WarnIfError();
 
 	// render transparent stuff, so it can overlap models/terrain
-	MICROLOG(L"render transparent");
 	RenderTransparentModels();
 	ogl_WarnIfError();
 
 	// render water
 	if (m_WaterManager->m_RenderWater && g_Game)
 	{
-		MICROLOG(L"render water");
 		m->terrainRenderer->RenderWater();
 		ogl_WarnIfError();
 		
 		// render transparent stuff again, so it can overlap the water
-		MICROLOG(L"render transparent 2");
 		RenderTransparentModels();
 		ogl_WarnIfError();
 		
@@ -1298,14 +1288,12 @@ void CRenderer::RenderSubmissions()
 	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 
 	// Particle Engine Rendering.
-	MICROLOG(L"render particles");
 	CParticleEngine::GetInstance()->RenderParticles();
 	ogl_WarnIfError();
 
 	// render debug lines
 	if (m_DisplayFrustum)
 	{
-		MICROLOG(L"display frustum");
 		DisplayFrustum();
 		m->shadow->RenderDebugDisplay();
 		ogl_WarnIfError();
@@ -1318,7 +1306,6 @@ void CRenderer::RenderSubmissions()
 	ogl_WarnIfError();
 
 	// empty lists
-	MICROLOG(L"empty lists");
 	m->terrainRenderer->EndFrame();
 	m->overlayRenderer.EndFrame();
 
@@ -1445,12 +1432,10 @@ void CRenderer::RenderScene(Scene *scene)
 {
 	CFrustum frustum = m_CullCamera.GetFrustum();
 
-	MICROLOG(L"collect objects");
 	scene->EnumerateObjects(frustum, this);
 
 	ogl_WarnIfError();
 
-	MICROLOG(L"flush objects");
 	RenderSubmissions();
 }
 
diff --git a/source/renderer/TerrainRenderer.cpp b/source/renderer/TerrainRenderer.cpp
index b902f4dfe0..4d04d08066 100644
--- a/source/renderer/TerrainRenderer.cpp
+++ b/source/renderer/TerrainRenderer.cpp
@@ -34,7 +34,6 @@
 #include "ps/CLogger.h"
 #include "ps/Game.h"
 #include "ps/Profile.h"
-#include "ps/Pyrogenesis.h"	// MICROLOG
 #include "ps/World.h"
 
 #include "simulation2/Simulation2.h"
@@ -166,7 +165,6 @@ void TerrainRenderer::RenderTerrain(ShadowMap* shadow)
 	
 	// render everything fullbright
 	// set up texture environment for base pass
-	MICROLOG(L"base splat textures");
 	pglActiveTextureARB(GL_TEXTURE0);
 	pglClientActiveTextureARB(GL_TEXTURE0);
 	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);