diff --git a/codemp/client/FxScheduler.cpp b/codemp/client/FxScheduler.cpp
index b89af91..e25c0da 100644
--- a/codemp/client/FxScheduler.cpp
+++ b/codemp/client/FxScheduler.cpp
@@ -262,7 +262,7 @@ int CFxScheduler::RegisterEffect( const char *file, bool bHasCorrectPath /*= fal
 	char sfile[MAX_QPATH];
 
 	COM_StripExtension( file, sfile );
-	strlwr(sfile);
+	Q_strlwr(sfile);
 
 	Com_DPrintf("Registering effect : %s\n", sfile);
 
diff --git a/codemp/client/snd_dma.cpp b/codemp/client/snd_dma.cpp
index da1472e..7288d15 100644
--- a/codemp/client/snd_dma.cpp
+++ b/codemp/client/snd_dma.cpp
@@ -851,7 +851,7 @@ sfx_t *S_FindName( const char *name ) {
 	sfx = &s_knownSfx[i];
 	memset (sfx, 0, sizeof(*sfx));
 	Q_strncpyz(sfx->sSoundName, sSoundNameNoExt, sizeof(sfx->sSoundName));
-	strlwr(sfx->sSoundName);//force it down low
+	Q_strlwr(sfx->sSoundName);//force it down low
 
 	sfx->next = sfxHash[hash];
 	sfxHash[hash] = sfx;
diff --git a/codemp/client/snd_mem.cpp b/codemp/client/snd_mem.cpp
index 5cef22c..121bdf6 100644
--- a/codemp/client/snd_mem.cpp
+++ b/codemp/client/snd_mem.cpp
@@ -744,7 +744,7 @@ static sboolean S_LoadSound_Actual( sfx_t *sfx )
 	// make up a local filename to try wav/mp3 substitutes...
 	//	
 	Q_strncpyz(sLoadName, sfx->sSoundName, sizeof(sLoadName));	
-	strlwr( sLoadName );
+	Q_strlwr( sLoadName );
 	//
 	// Ensure name has an extension (which it must have, but you never know), and get ptr to it...
 	//
diff --git a/codemp/client/snd_music.cpp b/codemp/client/snd_music.cpp
index 1036095..0a0a8a1 100644
--- a/codemp/client/snd_music.cpp
+++ b/codemp/client/snd_music.cpp
@@ -799,7 +799,7 @@ sboolean Music_DynamicDataAvailable(const char *psDynamicMusicLabel)
 {		
 	char sLevelName[MAX_QPATH];
 	Q_strncpyz(sLevelName,COM_SkipPath( const_cast<char*>( (psDynamicMusicLabel&&psDynamicMusicLabel[0])?psDynamicMusicLabel:gsLevelNameFromServer.c_str() ) ),sizeof(sLevelName));
-	strlwr(sLevelName);
+	Q_strlwr(sLevelName);
 
 	if (strlen(sLevelName))	// avoid error messages when there's no music waiting to be played and we try and restart it...
 	{
diff --git a/codemp/qcommon/stringed_ingame.cpp b/codemp/qcommon/stringed_ingame.cpp
index 488c0a0..caf547e 100644
--- a/codemp/qcommon/stringed_ingame.cpp
+++ b/codemp/qcommon/stringed_ingame.cpp
@@ -896,7 +896,7 @@ static LPCSTR SE_GetFoundFile( string &strResult )
 		strResult.erase();
 	}
 
-//	strlwr(sTemp);	// just for consistancy and set<> -> set<> erasure checking etc
+//	Q_strlwr(sTemp);	// just for consistancy and set<> -> set<> erasure checking etc
 
 	return sTemp;
 }
diff --git a/codemp/unix/linux_glimp.c b/codemp/unix/linux_glimp.c
index a2449b8..13ab8d6 100644
--- a/codemp/unix/linux_glimp.c
+++ b/codemp/unix/linux_glimp.c
@@ -1283,7 +1283,7 @@ void GLimp_Init( void )
 	// chipset specific configuration
 	//
 	strcpy( buf, glConfig.renderer_string );
-	strlwr( buf );
+	Q_strlwr( buf );
 
 	//
 	// NOTE: if changing cvars, do it within this block.  This allows them
diff --git a/codemp/unix/linux_local.h b/codemp/unix/linux_local.h
index 776d27f..90d7140 100644
--- a/codemp/unix/linux_local.h
+++ b/codemp/unix/linux_local.h
@@ -25,5 +25,3 @@ void QGL_Shutdown( void );
 
 // bk001130 - win32
 // void IN_JoystickCommands (void);
-
-char *strlwr (char *s);
diff --git a/codemp/unix/unix_shared.cpp b/codemp/unix/unix_shared.cpp
index f992276..0c75485 100644
--- a/codemp/unix/unix_shared.cpp
+++ b/codemp/unix/unix_shared.cpp
@@ -86,18 +86,6 @@ void	Sys_Mkdir( const char *path )
     mkdir (path, 0777);
 }
 
-char *strlwr (char *s) {
-  if ( s==NULL ) { // bk001204 - paranoia
-    assert(0);
-    return s;
-  }
-  while (*s) {
-    *s = tolower(*s);
-    s++;
-  }
-  return s; // bk001204 - duh
-}
-
 //============================================
 
 #define	MAX_FOUND_FILES	0x1000
diff --git a/codemp/win32/win_filecode.cpp b/codemp/win32/win_filecode.cpp
index a1ba9a8..ebd308b 100644
--- a/codemp/win32/win_filecode.cpp
+++ b/codemp/win32/win_filecode.cpp
@@ -70,7 +70,7 @@ int _buildFileList(const char* path, bool insert, bool buildList)
 			if(insert || buildList)
 			{
 				// Regular file -- add it to the table
-				strlwr(full);
+				Q_strlwr(full);
 				unsigned int code = crc32(0, (const byte *)full, strlen(full));
 
 				FileInfo info;
@@ -286,7 +286,7 @@ int Sys_GetFileCode(const char* name)
 	char* osname = FS_BuildOSPath(name);
 	
 	// Generate hash for file name
-	strlwr(osname);
+	Q_strlwr(osname);
 	unsigned int code = crc32(0, (const byte *)osname, strlen(osname));
 	
 	// Check if the file exists