diff --git a/cl_dll/MOTD.cpp b/cl_dll/MOTD.cpp
index 4273b0bf..6ab3a161 100644
--- a/cl_dll/MOTD.cpp
+++ b/cl_dll/MOTD.cpp
@@ -130,7 +130,7 @@ int CHudMOTD::MsgFunc_MOTD( const char *pszName, int iSize, void *pbuf )
 	BEGIN_READ( pbuf, iSize );
 
 	int is_finished = READ_BYTE();
-	strncat( m_szMOTD, READ_STRING(), sizeof(m_szMOTD) );
+	strncat( m_szMOTD, READ_STRING(), sizeof(m_szMOTD) - 1 );
 
 	if( is_finished )
 	{
diff --git a/cl_dll/hl/hl_weapons.cpp b/cl_dll/hl/hl_weapons.cpp
index 5a17e858..6d555b4c 100644
--- a/cl_dll/hl/hl_weapons.cpp
+++ b/cl_dll/hl/hl_weapons.cpp
@@ -288,7 +288,7 @@ Only produces random numbers to match the server ones.
 */
 Vector CBaseEntity::FireBulletsPlayer ( ULONG cShots, Vector vecSrc, Vector vecDirShooting, Vector vecSpread, float flDistance, int iBulletType, int iTracerFreq, int iDamage, entvars_t *pevAttacker, int shared_rand )
 {
-	float x, y, z;
+	float x = 0, y = 0, z;
 
 	for( ULONG iShot = 1; iShot <= cShots; iShot++ )
 	{
diff --git a/cl_dll/hud_spectator.cpp b/cl_dll/hud_spectator.cpp
index 91e8fa37..ff6eb8ff 100644
--- a/cl_dll/hud_spectator.cpp
+++ b/cl_dll/hud_spectator.cpp
@@ -993,7 +993,7 @@ void CHudSpectator::DrawOverviewLayer()
 	if ( hasMapImage)
 	{
 		i = m_MapSprite->numframes / (4*3);
-		i = sqrt(i);
+		i = sqrt(float(i));
 		xTiles = i*4;
 		yTiles = i*3;
 	}
diff --git a/cl_dll/input_xash3d.cpp b/cl_dll/input_xash3d.cpp
index 033af962..63cdfbeb 100644
--- a/cl_dll/input_xash3d.cpp
+++ b/cl_dll/input_xash3d.cpp
@@ -54,7 +54,7 @@ float rel_pitch;
 #define IMPULSE_DOWN	2
 #define IMPULSE_UP		4
 
-bool CL_IsDead();
+int CL_IsDead( void );
 Vector dead_viewangles(0, 0, 0);
 
 void IN_ToggleButtons( float forwardmove, float sidemove )
diff --git a/cl_dll/message.cpp b/cl_dll/message.cpp
index a9c706ec..5d52d413 100644
--- a/cl_dll/message.cpp
+++ b/cl_dll/message.cpp
@@ -310,7 +310,7 @@ int CHudMessage::Draw( float fTime )
 {
 	int i, drawn;
 	client_textmessage_t *pMessage;
-	float endTime;
+	float endTime = 0;
 
 	drawn = 0;
 
diff --git a/cl_dll/util.cpp b/cl_dll/util.cpp
index 52dc2f61..655bde64 100644
--- a/cl_dll/util.cpp
+++ b/cl_dll/util.cpp
@@ -32,6 +32,10 @@
 
 extern vec3_t vec3_origin;
 
+#ifdef _MSC_VER
+vec3_t vec3_origin;
+#endif
+
 double sqrt( double x );
 
 float Length( const float *v )
diff --git a/dlls/crossbow.cpp b/dlls/crossbow.cpp
index 4318f1e9..bf558865 100644
--- a/dlls/crossbow.cpp
+++ b/dlls/crossbow.cpp
@@ -31,6 +31,8 @@
 extern cvar_t  bm_xbow_mod;
 extern cvar_t  bm_xbowtracers;
 
+extern BOOL gPhysicsInterfaceInitialized;
+
 // UNDONE: Save/restore this?  Don't forget to set classname and LINK_ENTITY_TO_CLASS()
 // 
 // OVERLOADS SOME ENTVARS:
@@ -186,9 +188,12 @@ void CCrossbowBolt::BoltTouch( CBaseEntity *pOther )
 			pev->angles.z = RANDOM_LONG( 0, 360 );
 			pev->nextthink = gpGlobals->time + 10.0;			
 
-			// g-cont. Setup movewith feature
-			pev->movetype = MOVETYPE_COMPOUND;	// set movewith type
-			pev->aiment = ENT( pOther->pev );	// set parent
+			if( gPhysicsInterfaceInitialized )
+			{
+				// g-cont. Setup movewith feature
+				pev->movetype = MOVETYPE_COMPOUND;	// set movewith type
+				pev->aiment = ENT( pOther->pev );	// set parent
+			}
 		}
 
 		if( UTIL_PointContents( pev->origin ) != CONTENTS_WATER )
diff --git a/dlls/effects.cpp b/dlls/effects.cpp
index e9492dd6..ecc04a19 100644
--- a/dlls/effects.cpp
+++ b/dlls/effects.cpp
@@ -410,7 +410,7 @@ LINK_ENTITY_TO_CLASS( trip_beam, CTripBeam )
 void CTripBeam::Spawn( void )
 {
 	CLightning::Spawn();
-	SetTouch( &TriggerTouch );
+	SetTouch( &CLightning::TriggerTouch );
 	pev->solid = SOLID_TRIGGER;
 	RelinkBeam();
 }
@@ -1267,7 +1267,7 @@ void CSprite::TurnOn( void )
 	pev->effects = 0;
 	if( ( pev->framerate && m_maxFrame > 1.0 ) || ( pev->spawnflags & SF_SPRITE_ONCE ) )
 	{
-		SetThink( &CSprite::CSprite::AnimateThink );
+		SetThink( &CSprite::AnimateThink );
 		pev->nextthink = gpGlobals->time;
 		m_lastTime = gpGlobals->time;
 	}
diff --git a/dlls/mpstubb.cpp b/dlls/mpstubb.cpp
index 3cc2e5c2..703a4dba 100644
--- a/dlls/mpstubb.cpp
+++ b/dlls/mpstubb.cpp
@@ -74,7 +74,7 @@ void CBaseMonster::MonsterInitDead( void )
 
 	// Setup health counters, etc.
 	BecomeDead();
-	SetThink( &CorpseFallThink );
+	SetThink( &CBaseMonster::CorpseFallThink );
 	pev->nextthink = gpGlobals->time + 0.5;
 }
 
diff --git a/dlls/nodes.cpp b/dlls/nodes.cpp
index ed4b4033..a97b6a80 100644
--- a/dlls/nodes.cpp
+++ b/dlls/nodes.cpp
@@ -45,6 +45,8 @@ LINK_ENTITY_TO_CLASS( info_node_air, CNodeEnt )
 #include <unistd.h>
 #include <sys/stat.h>
 #define CreateDirectory(p, n) mkdir(p, 0777)
+#else
+#define CreateDirectory(p, n) CreateDirectoryA(p, n)
 #endif
 
 //=========================================================
diff --git a/dlls/stats.cpp b/dlls/stats.cpp
index 038e1667..9b21f792 100644
--- a/dlls/stats.cpp
+++ b/dlls/stats.cpp
@@ -15,7 +15,7 @@
 #include "weapons.h"
 #include "soundent.h"
 #include "monsters.h"
-#include "..\engine\shake.h"
+#include "../engine/shake.h"
 #include "decals.h"
 #include "gamerules.h"
 
diff --git a/dlls/util.cpp b/dlls/util.cpp
index 47eaf2f8..d1fceb0a 100644
--- a/dlls/util.cpp
+++ b/dlls/util.cpp
@@ -2228,22 +2228,22 @@ int CRestore::ReadField( void *pBaseData, TYPEDESCRIPTION *pFields, int fieldCou
 							*( (EOFFSET *)pOutputData ) = 0;
 						break;
 					case FIELD_VECTOR:
+						#ifdef __VFP_FP__
+						memcpy( pOutputData, pInputData, sizeof( Vector ) );
+						#else
 						( (float *)pOutputData )[0] = ( (float *)pInputData )[0];
 						( (float *)pOutputData )[1] = ( (float *)pInputData )[1];
 						( (float *)pOutputData )[2] = ( (float *)pInputData )[2];
+						#endif
 						break;
 					case FIELD_POSITION_VECTOR:
 						#ifdef  __VFP_FP__
-						float tmp;
-						memcpy( &tmp, (char *)pInputData + 0, 4 );
-						tmp += position.x;
-						memcpy( (char *)pOutputData + 0, &tmp, 4 );
-						memcpy( &tmp, (char *)pInputData + 4, 4 );
-						tmp += position.y;
-						memcpy( (char *)pOutputData + 4, &tmp, 4 );
-						memcpy( &tmp, (char *)pInputData + 8, 4 );
-						tmp += position.z;
-						memcpy( (char *)pOutputData + 8, &tmp, 4 );
+						{
+							Vector tmp;
+							memcpy( &tmp, pInputData, sizeof( Vector ) );
+							tmp = tmp + position;
+							memcpy( pOutputData, &tmp, sizeof( Vector ) );
+						}
 						#else
 						( (float *)pOutputData )[0] = ( (float *)pInputData )[0] + position.x;
 						( (float *)pOutputData )[1] = ( (float *)pInputData )[1] + position.y;
diff --git a/dlls/weapons.cpp b/dlls/weapons.cpp
index 964f0bb5..800a63a1 100644
--- a/dlls/weapons.cpp
+++ b/dlls/weapons.cpp
@@ -1121,7 +1121,7 @@ void CBasePlayerAmmo::DefaultTouch( CBaseEntity *pOther )
 //=========================================================
 int CBasePlayerWeapon::ExtractAmmo( CBasePlayerWeapon *pWeapon )
 {
-	int iReturn;
+	int iReturn = 0;
 
 	if( pszAmmo1() != NULL )
 	{
diff --git a/dlls/world.cpp b/dlls/world.cpp
index 5b2f3922..138452a8 100644
--- a/dlls/world.cpp
+++ b/dlls/world.cpp
@@ -879,6 +879,8 @@ static physics_interface_t gPhysicsInterface =
 	DispatchPhysicsEntity,
 };
 
+BOOL gPhysicsInterfaceInitialized = FALSE;
+
 int Server_GetPhysicsInterface( int iVersion, server_physics_api_t *pfuncsFromEngine, physics_interface_t *pFunctionTable )
 {
 	if( !pFunctionTable || !pfuncsFromEngine || iVersion != SV_PHYSICS_INTERFACE_VERSION )
@@ -891,6 +893,6 @@ int Server_GetPhysicsInterface( int iVersion, server_physics_api_t *pfuncsFromEn
 
 	// fill engine callbacks
 	memcpy( pFunctionTable, &gPhysicsInterface, sizeof(physics_interface_t) );
-
+	gPhysicsInterfaceInitialized = TRUE;
 	return TRUE;
 }
diff --git a/engine/cdll_int.h b/engine/cdll_int.h
index b77a174a..eaa7f4e8 100644
--- a/engine/cdll_int.h
+++ b/engine/cdll_int.h
@@ -93,6 +93,12 @@ typedef struct client_textmessage_s
 	const char	*pMessage;
 } client_textmessage_t;
 
+#if __MSC_VER == 1200
+#define ulonglong_t __int64
+#else
+#define ulonglong_t unsigned long long
+#endif
+
 typedef struct hud_player_info_s
 {
 	char		*name;
@@ -106,7 +112,7 @@ typedef struct hud_player_info_s
 	short		topcolor;
 	short		bottomcolor;
 
-	unsigned long long	m_nSteamID;
+	ulonglong_t	m_nSteamID;
 } hud_player_info_t;
 
 typedef struct cl_enginefuncs_s
diff --git a/pm_shared/pm_defs.h b/pm_shared/pm_defs.h
index 70b8369d..d29bff19 100644
--- a/pm_shared/pm_defs.h
+++ b/pm_shared/pm_defs.h
@@ -194,7 +194,12 @@ typedef struct playermove_s
 	int		(*PM_PointContents)( float *p, int *truecontents /*filled in if this is non-null*/ );
 	int		(*PM_TruePointContents)( float *p );
 	int		(*PM_HullPointContents)( struct hull_s *hull, int num, float *p );   
+#ifdef __MINGW32__
+	pmtrace_t		*(*PM_PlayerTrace_real)( pmtrace_t * retvalue, float *start, float *end, int traceFlags, int ignore_pe );
+
+#else
 	pmtrace_t		(*PM_PlayerTrace)( float *start, float *end, int traceFlags, int ignore_pe );
+#endif
 	struct pmtrace_s	*(*PM_TraceLine)( float *start, float *end, int flags, int usehulll, int ignore_pe );
 	long		(*RandomLong)( long lLow, long lHigh );
 	float		(*RandomFloat)( float flLow, float flHigh );
@@ -213,9 +218,32 @@ typedef struct playermove_s
 	void		(*PM_PlaySound)( int channel, const char *sample, float volume, float attenuation, int fFlags, int pitch );
 	const char	*(*PM_TraceTexture)( int ground, float *vstart, float *vend );
 	void		(*PM_PlaybackEventFull)( int flags, int clientindex, unsigned short eventindex, float delay, float *origin, float *angles, float fparam1, float fparam2, int iparam1, int iparam2, int bparam1, int bparam2 );
+#ifdef __MINGW32__
+	pmtrace_t		*(*PM_PlayerTraceEx_real) (pmtrace_t *retvalue, float *start, float *end, int traceFlags, int (*pfnIgnore)( physent_t *pe ));
+#else
 	pmtrace_t		(*PM_PlayerTraceEx) (float *start, float *end, int traceFlags, int (*pfnIgnore)( physent_t *pe ));
+#endif
 	int		(*PM_TestPlayerPositionEx) (float *pos, pmtrace_t *ptrace, int (*pfnIgnore)( physent_t *pe ));
 	struct pmtrace_s	*(*PM_TraceLineEx)( float *start, float *end, int flags, int usehulll, int (*pfnIgnore)( physent_t *pe ));
 	struct msurface_s	*(*PM_TraceSurface)( int ground, float *vstart, float *vend );
 } playermove_t;
+
+#ifdef __MINGW32__
+static pmtrace_t _pm_globalresult, _pm_globaltmp;
+	static inline pmtrace_t PM_PlayerTrace_wrap( float *start, float *end, int traceFlags, int ignore_pe, playermove_t *pmove )
+	{
+		_pm_globaltmp = pmove->touchindex[MAX_PHYSENTS -1];
+		pmove->PM_PlayerTrace_real( &_pm_globalresult, start, end, traceFlags, ignore_pe );
+		return _pm_globalresult;
+	}
+	static inline pmtrace_t PM_PlayerTraceEx_wrap( float *start, float *end, int traceFlags, int (*pfnIgnore)( physent_t *pe ), playermove_t *pmove )
+	{
+		_pm_globaltmp = pmove->touchindex[MAX_PHYSENTS -1];
+		pmove->PM_PlayerTraceEx_real( &_pm_globalresult, start, end, traceFlags, pfnIgnore );
+		return _pm_globalresult;
+	}
+#define PM_PlayerTrace(a,b,c,d) touchindex[MAX_PHYSENTS -1] = PM_PlayerTrace_wrap( a, b, c, d, pmove );pmove->touchindex[MAX_PHYSENTS -1] = _pm_globaltmp
+#define PM_PlayerTraceEx(a,b,c,d) touchindex[MAX_PHYSENTS -1] = PM_PlayerTraceEx_wrap( a, b, c, d, pmove );pmove->touchindex[MAX_PHYSENTS -1] = _pm_globaltmp
+#endif
+
 #endif//PM_DEFS_H