diff --git a/dlls/engine/engine.h b/dlls/engine/engine.h
index 1960a580..6a70e668 100755
--- a/dlls/engine/engine.h
+++ b/dlls/engine/engine.h
@@ -1,11 +1,4 @@
-#ifdef __linux__
-#include <malloc.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
-#include <sched.h>
-#endif
-#define VERSION "0.75"
+#define VERSION "0.79"
 
 plugin_info_t Plugin_info = {
 
@@ -47,7 +40,6 @@ class AmxCallList {
   public:
 struct AmxCall {
   AMX *amx;
-  //void* code;
   int iFunctionIdx;
    AmxCall* next;
    AmxCall( AMX *a , int i, AmxCall* n  ) : amx(a), iFunctionIdx(i), next(n) {}
@@ -311,7 +303,7 @@ public:
 		writelong = (long)0;
 		writeangle = 0.0;
 		writecoord = 0.0;
-		writestring = NULL;
+		writestring = '\0';
 		writeentity = 0;
 	}
 
@@ -365,13 +357,15 @@ public:
 		}
 	}
 
-	void put(int arg_type, char *sz)
+	void put_string(int arg_type, const char *sz)
 	{
 		argtype = arg_type;
 		switch (argtype)
 		{
 		case arg_string:
-			writestring = sz;
+			delete[] writestring;
+			writestring = new char[strlen(sz)+1];
+			strcpy(writestring, sz);
 			break;
 		}
 	}
@@ -446,16 +440,27 @@ public:
 		return 0.0;
 	}
 
+	int getarg_strlen(int arg_type)
+	{
+		switch (argtype)
+		{
+		case arg_string:
+			return (strlen(writestring));
+			break;
+		}
+		return 0;
+	}
+
 	char *getarg_string(int arg_type)
 	{
 		switch (argtype)
 		{
 		case arg_string:
-			return writestring;
+			return (strlen(writestring)?writestring:'\0');
 			break;
 		}
 
-		return NULL;
+		return '\0';
 	}
 
 	int get_argtype()
@@ -717,7 +722,7 @@ public:
 		argcount++;
 	}
 
-	void AddArg(int i, char *sz)
+	void AddArgString(int i, const char *sz)
 	{
 		argStack *p;
 		if (CTailArg == NULL) {
@@ -727,7 +732,7 @@ public:
 			p = CTailArg->arg();
 			CTailArg = p;
 		}
-		CTailArg->put(i,sz);
+		CTailArg->put_string(i,sz);
 		argcount++;
 	}
 
@@ -793,7 +798,7 @@ public:
 			for (p=CHeadArg->link(); p!=NULL; p=p->link()) {
 				i++;
 				if (i==n) {
-					p->put(arg_type, data);
+					p->put_string(arg_type, (const char*)data);
 					return true;
 				}
 			}
@@ -838,12 +843,30 @@ public:
 		return 0.0;
 	}
 
+	int RetArg_Strlen(int n)
+	{
+		argStack *p;
+		int i=0;
+		if (n>argcount) {
+			return 0;
+		} else {
+			for (p=CHeadArg->link(); p!=NULL; p=p->link()) {
+				i++;
+				if (i==n) {
+					return p->getarg_strlen(arg_string);
+				}
+			}
+		}
+
+		return 0;
+	}
+
 	char* RetArg_String(int n)
 	{
 		argStack *p;
 		int i=0;
 		if (n>argcount) {
-			return NULL;
+			return '\0';
 		} else {
 			for (p=CHeadArg->link(); p!=NULL; p=p->link()) {
 				i++;
@@ -853,7 +876,7 @@ public:
 			}
 		}
 
-		return NULL;
+		return '\0';
 	}
 
 	int ArgType(int n)
@@ -897,13 +920,3 @@ struct MsgSets
 	MessageInfo *msg;
 	AmxCallList msgCalls;
 };
-
-#ifdef __linux__
-int thread_fork(void *arg)
-{
-	char *szCmd;
-	szCmd = (char*)arg;
-	system(szCmd);
-	return 0;
-}
-#endif
diff --git a/dlls/engine/meta_api.cpp b/dlls/engine/meta_api.cpp
index 871d4445..188cac83 100755
--- a/dlls/engine/meta_api.cpp
+++ b/dlls/engine/meta_api.cpp
@@ -216,12 +216,13 @@ static cell AMX_NATIVE_CALL get_msg_arg_float(AMX *amx, cell *params)
 }
 
 //(BAILOPAN)
-//gets a message argument as an string
+//gets a message argument as a string
 static cell AMX_NATIVE_CALL get_msg_arg_string(AMX *amx, cell *params)
 {
 	int msg_type = params[1];
 	int argn = params[2];
-	char *szValue;
+	int iLen = 0;
+	char *szValue = '\0';
 	
 	if (msg_type < 0 || msg_type > MAX_MESSAGES) {
 		AMX_RAISEERROR(amx, AMX_ERR_NATIVE);
@@ -229,8 +230,14 @@ static cell AMX_NATIVE_CALL get_msg_arg_string(AMX *amx, cell *params)
 	} else {
 		if (Msg[msg_type].isHooked && Msg[msg_type].msg!=NULL) {
 			if (argn < Msg[msg_type].msg->args() && argn > 0) {
-				szValue = Msg[msg_type].msg->RetArg_String(argn);
-				return SET_AMXSTRING(amx, params[3], szValue, params[4]);
+				iLen = Msg[msg_type].msg->RetArg_Strlen(argn);
+				szValue = new char[iLen+1];
+				strcpy(szValue, Msg[msg_type].msg->RetArg_String(argn));
+				if (strlen(szValue)) {
+					return SET_AMXSTRING(amx, params[3], szValue, params[4]);
+				} else {
+					return SET_AMXSTRING(amx, params[3], "", params[4]);
+				}
 			} else {
 				AMX_RAISEERROR(amx, AMX_ERR_NATIVE);
 				return 0;
@@ -478,82 +485,6 @@ static cell AMX_NATIVE_CALL get_offset_float(AMX *amx, cell *params)
 	return 1;
 }
 
-//(BAILOPAN)
-//return operating system
-static cell AMX_NATIVE_CALL get_system_os(AMX *amx, cell *params)
-{
-	int iLen = params[2];
-#ifndef __linux__
-	char *szOS = "win32";
-#else
-	char *szOS = "linux";
-#endif
-	return SET_AMXSTRING(amx, params[1], szOS, iLen);
-}
-
-//(BAILOPAN)
-//Allows you to issue a command to the operating system.
-static cell AMX_NATIVE_CALL system_cmd(AMX  *amx, cell *params)
-{
-	int i_apptype = params[1];
-	int iLen, retVal, iLen2;
-	char *szCommand = AMX_GET_STRING(amx, params[2], iLen);
-	char *szDirectory = AMX_GET_STRING(amx, params[3], iLen2);
-	if (!iLen2) {
-		szDirectory = NULL;
-	}
-#ifndef __linux__
-	STARTUPINFO si;
-	PROCESS_INFORMATION pi;
-
-	ZeroMemory(&si, sizeof(si));
-	if (i_apptype & 2) {
-		si.dwFlags = STARTF_USESHOWWINDOW;
-		si.wShowWindow = SW_HIDE;
-	}
-	si.cb = sizeof(si);
-	ZeroMemory(&pi, sizeof(pi));
-
-	if (!i_apptype & 1) {
-		if (!CreateProcess(NULL, (LPTSTR)szCommand, NULL, NULL, FALSE, 0, NULL, (LPCTSTR)szDirectory, &si, &pi)) {
-			return 0;
-		} else {
-			retVal = 1;
-		}
-	} else {
-		if (!CreateProcess((LPCTSTR)szCommand, NULL, NULL, NULL, FALSE, 0, NULL, (LPCTSTR)szDirectory, &si, &pi)) {
-			return 0;
-		} else {
-			retVal = 1;
-		}
-	}
-#else
-	void *stack;
-	pid_t pid;
-	
-	if (!app_type) {
-		app_type = 64;
-	}
-
-	stack = malloc(app_type * 1024);
-	if (stack == 0) {
-		return -1;
-	}
-
-	pid = clone(&thread_fork, (char *)stack + app_type*1024, 0, szCommand);
-	if (pid == -1) {
-		return -1;
-	}
-	pid = waitpid(pid, 0, 0);
-	if (pid == -1) {
-		return -1;
-	}
-	free(stack);
-	retval = 1;
-#endif
-	return retVal;
-}
-
 // Get an integer from an entities entvars.
 // (vexd)
 static cell AMX_NATIVE_CALL entity_get_int(AMX *amx, cell *params) { 
@@ -572,7 +503,6 @@ static cell AMX_NATIVE_CALL entity_get_int(AMX *amx, cell *params) {
 
 	// Is it a real entity?
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -689,7 +619,6 @@ static cell AMX_NATIVE_CALL entity_get_int(AMX *amx, cell *params) {
 			iRetValue = pEntity->v.deadflag;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -704,14 +633,12 @@ static cell AMX_NATIVE_CALL entity_set_int(AMX *amx, cell *params) {
 	int iNewValue = params[3];
   
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pEntity = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -828,7 +755,6 @@ static cell AMX_NATIVE_CALL entity_set_int(AMX *amx, cell *params) {
 			pEntity->v.deadflag = iNewValue;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -854,7 +780,6 @@ static cell AMX_NATIVE_CALL entity_get_float(AMX *amx, cell *params) {
 
 	// is it a valid entity?
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -971,7 +896,6 @@ static cell AMX_NATIVE_CALL entity_get_float(AMX *amx, cell *params) {
 			fRetValue = pEntity->v.fuser4;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -986,14 +910,12 @@ static cell AMX_NATIVE_CALL entity_set_float(AMX *amx, cell *params) {
 	float fNewValue = *(float *)((void *)&params[3]);
   
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pEntity = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1110,7 +1032,6 @@ static cell AMX_NATIVE_CALL entity_set_float(AMX *amx, cell *params) {
 			pEntity->v.fuser4 = fNewValue;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -1132,14 +1053,12 @@ static cell AMX_NATIVE_CALL entity_get_vector(AMX *amx, cell *params) {
 	Vector vRetValue = Vector(0, 0, 0);
   
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pEntity = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1214,7 +1133,6 @@ static cell AMX_NATIVE_CALL entity_get_vector(AMX *amx, cell *params) {
 			vRetValue = pEntity->v.vuser4;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -1240,14 +1158,12 @@ static cell AMX_NATIVE_CALL entity_set_vector(AMX *amx, cell *params) {
 	Vector vNewValue = Vector(fNewX, fNewY, fNewZ);
   
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pEntity = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1322,7 +1238,6 @@ static cell AMX_NATIVE_CALL entity_set_vector(AMX *amx, cell *params) {
 			pEntity->v.vuser4 = vNewValue;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -1341,7 +1256,6 @@ static cell AMX_NATIVE_CALL entity_get_edict(AMX *amx, cell *params) {
   
 	// Valid entity?
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1350,7 +1264,6 @@ static cell AMX_NATIVE_CALL entity_get_edict(AMX *amx, cell *params) {
 
 	// is it valid?
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1389,7 +1302,6 @@ static cell AMX_NATIVE_CALL entity_get_edict(AMX *amx, cell *params) {
 			pRetValue = pEntity->v.euser4;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -1409,19 +1321,16 @@ static cell AMX_NATIVE_CALL entity_set_edict(AMX *amx, cell *params) {
 	edict_t *pNewValue = INDEXENT(params[3]);
   
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pEntity = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	if(FNullEnt(pNewValue)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1460,7 +1369,6 @@ static cell AMX_NATIVE_CALL entity_set_edict(AMX *amx, cell *params) {
 			pEntity->v.euser4 = pNewValue;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -1479,7 +1387,6 @@ static cell AMX_NATIVE_CALL entity_get_string(AMX *amx, cell *params) {
   
 	// Valid entity?
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1488,7 +1395,6 @@ static cell AMX_NATIVE_CALL entity_get_string(AMX *amx, cell *params) {
 
 	// Is entity valid again?
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1533,7 +1439,6 @@ static cell AMX_NATIVE_CALL entity_get_string(AMX *amx, cell *params) {
 			iszRetValue = pEntity->v.weaponmodel;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -1550,14 +1455,12 @@ static cell AMX_NATIVE_CALL entity_set_string(AMX *amx, cell *params) {
 	int iszNewValue = AMX_MAKE_STRING(amx, params[3], iLength);
 
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pEntity = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1602,7 +1505,6 @@ static cell AMX_NATIVE_CALL entity_set_string(AMX *amx, cell *params) {
 			pEntity->v.weaponmodel = iszNewValue;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -1620,14 +1522,12 @@ static cell AMX_NATIVE_CALL entity_get_byte(AMX *amx, cell *params) {
 	int iRetValue = 0;
 
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pEntity = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1651,7 +1551,6 @@ static cell AMX_NATIVE_CALL entity_get_byte(AMX *amx, cell *params) {
 			iRetValue = pEntity->v.blending[2];
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -1667,14 +1566,12 @@ static cell AMX_NATIVE_CALL entity_set_byte(AMX *amx, cell *params) {
 	int iNewValue = params[3];
 
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pEntity = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1701,7 +1598,6 @@ static cell AMX_NATIVE_CALL entity_set_byte(AMX *amx, cell *params) {
 			pEntity->v.blending[2] = iNewValue;
 			break;
 		default:
-			AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 			return 0;
 			break;
 	}
@@ -1720,14 +1616,12 @@ static cell AMX_NATIVE_CALL VelocityByAim(AMX *amx, cell *params) {
 	Vector vRetValue = Vector(0, 0, 0);
   
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pEntity = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1832,14 +1726,13 @@ static cell AMX_NATIVE_CALL create_entity(AMX *amx, cell *params) {
 	edict_t* pNewEntity = CREATE_NAMED_ENTITY(iszNewClassName);
 
 	if(FNullEnt(pNewEntity)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	return ENTINDEX(pNewEntity);
 }
 
-// FindEntity, use this in a while loop. will return -1 when theres no entities left.
+// FindEntity, use this in a while loop. will return 0 when theres no entities left.
 // It searches by classname.
 //(vexd)
 static cell AMX_NATIVE_CALL find_entity(AMX *amx, cell *params) {
@@ -1856,14 +1749,14 @@ static cell AMX_NATIVE_CALL find_entity(AMX *amx, cell *params) {
 		pStartEnt = INDEXENT(iStartEnt);
 
 		if(FNullEnt(pStartEnt)) {
-			return -1;
+			return 0;
 		}
 	}
 
 	int iReturnEnt = ENTINDEX(FIND_ENTITY_BY_STRING(pStartEnt, "classname", szValue));
 
 	if(!iReturnEnt || FNullEnt(iReturnEnt)) {
-		return -1;
+		return 0;
 	}
 
 	return iReturnEnt;
@@ -1881,7 +1774,6 @@ static cell AMX_NATIVE_CALL DispatchKeyValue(AMX *amx, cell *params) {
 
 
 	if(FNullEnt(pTarget)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1902,7 +1794,6 @@ static cell AMX_NATIVE_CALL DispatchSpawn(AMX *amx, cell *params) {
 	edict_t* pTarget = INDEXENT(params[1]);
 
 	if(FNullEnt(pTarget)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1925,14 +1816,12 @@ static cell AMX_NATIVE_CALL entity_set_origin(AMX *amx, cell *params) {
 	Vector vNewValue = Vector(fNewX, fNewY, fNewZ);
 
 	if (iTargetEntity < 1 || iTargetEntity > gpGlobals->maxEntities) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
 	edict_t* pTarget = INDEXENT(iTargetEntity);
 
 	if(FNullEnt(pTarget)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1953,7 +1842,6 @@ static cell AMX_NATIVE_CALL entity_set_model(AMX *amx, cell *params) {
 	char *szNewValue = AMX_GET_STRING(amx, params[2], iLength);
 
 	if(FNullEnt(pTarget)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -1977,14 +1865,14 @@ static cell AMX_NATIVE_CALL find_ent_by_target(AMX *amx, cell *params)
 	} else {
 		pStart = INDEXENT(iStart);
 		if (FNullEnt(pStart)) {
-			return -1;
+			return 0;
 		}
 	}
 
 	int iReturnEnt = ENTINDEX(FIND_ENTITY_BY_TARGET(pStart, szValue));
 
 	if (!iReturnEnt || FNullEnt(iReturnEnt)) {
-		return -1;
+		return 0;
 	}
 
 	return iReturnEnt;
@@ -2006,7 +1894,7 @@ static cell AMX_NATIVE_CALL find_ent_by_model(AMX *amx, cell *params) {
 	} else {
 		pStart = INDEXENT(iStart);
 		if (FNullEnt(pStart)) {
-			return -1;
+			return 0;
 		}
 	}
 
@@ -2024,7 +1912,7 @@ static cell AMX_NATIVE_CALL find_ent_by_model(AMX *amx, cell *params) {
 	}
 
 	if(!checkEnt || FNullEnt(checkEnt)) {
-		return -1;
+		return 0;
 	}
 
 	return checkEnt;
@@ -2044,14 +1932,14 @@ static cell AMX_NATIVE_CALL find_ent_by_tname(AMX *amx, cell *params) {
 	} else {
 		pStart = INDEXENT(iStart);
 		if (FNullEnt(pStart)) {
-			return -1;
+			return 0;
 		}
 	}
 
 	int iReturnEnt = ENTINDEX(FIND_ENTITY_BY_TARGETNAME(pStart, szValue));
 
 	if (!iReturnEnt || FNullEnt(iReturnEnt)) {
-		return -1;
+		return 0;
 	}
 
 	return iReturnEnt;
@@ -2074,7 +1962,7 @@ static cell AMX_NATIVE_CALL find_ent_by_owner(AMX *amx, cell *params) {
 		pStartEnt = INDEXENT(iStartEnt);
 
 		if(FNullEnt(pStartEnt)) {
-			return -1;
+			return 0;
 		}
 	}
 
@@ -2092,7 +1980,7 @@ static cell AMX_NATIVE_CALL find_ent_by_owner(AMX *amx, cell *params) {
 	}
 
 	if(!checkEnt || FNullEnt(checkEnt) || (iOwner == -1)) {
-		return -1;
+		return 0;
 	}
 
 	return checkEnt;
@@ -2113,7 +2001,6 @@ static cell AMX_NATIVE_CALL remove_entity(AMX *amx, cell *params) {
 	edict_t* pTarget = INDEXENT(iTarget);
 
 	if(FNullEnt(pTarget)) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -2254,7 +2141,7 @@ static cell AMX_NATIVE_CALL trace_line(AMX *amx, cell *params) {
 	vReturnTo[2] = *(cell*)((void *)&tr.vecEndPos.z); 
 
 	if(FNullEnt(pHit)) {
-		return -1;
+		return 0;
 	}
 
 	return ENTINDEX(pHit);
@@ -2294,7 +2181,6 @@ static cell AMX_NATIVE_CALL get_grenade_id(AMX *amx, cell *params)  /* 4 param *
 
 	if (index<1||index>gpGlobals->maxClients)
 	{
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE); 
 		return 0; 
 	}
 
@@ -2323,7 +2209,6 @@ static cell AMX_NATIVE_CALL set_msg_block(AMX *amx, cell *params) {
 	int iMessageFlags = params[2];
 
 	if (iMessage < 1 || iMessage > MAX_MESSAGES) {
-		AMX_RAISEERROR(amx,AMX_ERR_NATIVE);
 		return 0;
 	}
 
@@ -2787,9 +2672,9 @@ void MessageEnd(void) {
 		Msg[msg_type].isCalled = false;
 		if (result != MRES_SUPERCEDE) {	//supercede the message ANYWAY
 			Msg[msg_type].msg->SendMsg();
-			result = MRES_SUPERCEDE;
+			RETURN_META(MRES_SUPERCEDE);
 		}
-		//destroy(Msg[msg_type].msg);
+		destroy(Msg[msg_type].msg);
 	}
 
 	RETURN_META(result);
@@ -2873,7 +2758,7 @@ void WriteString(const char *sz) {
 	}
 	int msg_type = LastMessage;
 	if (msg_type && Msg[msg_type].isCalled && Msg[msg_type].isHooked) {
-		Msg[msg_type].msg->AddArg(arg_string, (char*)sz);
+		Msg[msg_type].msg->AddArgString(arg_string, sz);
 		RETURN_META(MRES_SUPERCEDE);
 	}
 	RETURN_META(MRES_IGNORED);
@@ -3213,9 +3098,6 @@ AMX_NATIVE_INFO Engine_Natives[] = {
 	{"get_msg_args",		get_msg_args},
 	{"get_msg_argtype",		get_msg_argtype},
 
-	{"get_system_os",		get_system_os},
-	{"system_cmd",			system_cmd},
-
 	{ NULL, NULL }
 
 };
\ No newline at end of file