diff --git a/mex/sources/build_matlab.m b/mex/sources/build_matlab.m
index 904f7a1da..5c57970ec 100644
--- a/mex/sources/build_matlab.m
+++ b/mex/sources/build_matlab.m
@@ -19,8 +19,8 @@
 
 addpath '../../matlab'; % For matlab_ver_less_than
 
-MATLAB_PATH = matlabroot;
-
+%MATLAB_PATH = matlabroot;
+MATLAB_PATH = regexprep(matlabroot,'\\','/');
 COMPILE_OPTIONS = '';
 
 if strcmpi('GLNX86', computer) || strcmpi('GLNXA64', computer) ...
diff --git a/mex/sources/estimation/DsgeLikelihood.cpp b/mex/sources/estimation/DsgeLikelihood.cpp
index b1505a462..a5ab94a4e 100644
--- a/mex/sources/estimation/DsgeLikelihood.cpp
+++ b/mex/sources/estimation/DsgeLikelihood.cpp
@@ -225,6 +225,9 @@ DsgeLikelihood::~DsgeLikelihood()
   delete &deepParams;
   delete &ghx;
   delete &ghu;
+  delete &dynareParams;
+  delete &dr;
+
   }
 
 double 
diff --git a/mex/sources/estimation/MexUtils.h b/mex/sources/estimation/MexUtils.h
index 51c3332de..51de463d9 100644
--- a/mex/sources/estimation/MexUtils.h
+++ b/mex/sources/estimation/MexUtils.h
@@ -23,7 +23,7 @@
 #include "ioutils.h"
 #include "mex.h"
 #include "matrix.h"
-#include "SylvException.h"
+//#include "SylvException.h"
 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
 
@@ -31,13 +31,13 @@
 //#include "k_ord_dynare.h"
 //using namespace std;
 enum {base, caller, global};
-char* mexBase[]={"base", "caller", "global"};
+enum  {M_,  oo_, options_,bayestopt_, estim_params_, dr};
+extern const char *DynareParamStructsNm [];
+extern const char* mexBase[];
 
 const int numParStructs=5;
-#define numParStructsM 7
+//#define numParStructsM 6
 
-enum  {M_, dr_, oo_, options_,bayestopt_, estim_params_, trend_coeff_};
-char *DynareParamStructsNm [numParStructsM]={"M_", "dr_", "oo_", "options_", "bayestopt_", "estim_params_",  "trend_coeff_"};
 
 /**
 struct DynareParamsStructMap
@@ -61,7 +61,7 @@ char* structName;
 
 class MexStructParam;
 
-class MexStruct :public GeneralParams 
+class MexStruct :public  virtual GeneralParams 
   {
   vector <int> parStructBase;
   vector <const mxArray*> parStruct;  // array of struct pointers
@@ -69,7 +69,7 @@ class MexStruct :public GeneralParams
   const int numParStruct;
   const string structName;
   
-  mxArray* getMxField( const string& field) //throw (SYLV_MES_EXCEPTION)
+  mxArray* getMxField( const string& field) 
     {
     map<string, int>::iterator it=parNamStructMap.find(field);
     if (it==parNamStructMap.end())
@@ -77,14 +77,14 @@ class MexStruct :public GeneralParams
     return mxGetField(parStruct[it->second], 0, field.c_str() );
     }
   
-  StructBaseNameMap* getMxFieldStruct( const string& field) //throw (SYLV_MES_EXCEPTION)
+  StructBaseNameMap* getMxFieldStruct( const string& field) 
     {
     map<string, int>::iterator it=parNamStructMap.find(field);
     if (it==parNamStructMap.end())
       throw(SYLV_MES_EXCEPTION("no parameter with such name"));
     StructBaseNameMap* dpsm=new StructBaseNameMap;
-    dpsm->baseName=mexBase[parStructBase[it->second]];
-    dpsm->structName=DynareParamStructsNm[it->second];
+    dpsm->baseName=(char*)mexBase[parStructBase[it->second]];
+    dpsm->structName=(char*)DynareParamStructsNm[it->second];
     
     return dpsm;
     }
@@ -103,7 +103,7 @@ class MexStruct :public GeneralParams
       mexStruct=mexGetVariable(base, structName);
       }
     **/
-    ~MexStruct();
+    ~MexStruct(){};
     void * 
       getMxArrayField(const string& field)
       {
@@ -138,7 +138,7 @@ class MexStruct :public GeneralParams
 * holds single Matlab structure passed as parameter
 ***********************************************/
 
-class MexStructParam :public GeneralParams 
+class MexStructParam :public virtual GeneralParams 
   {
   const mxArray* parStruct; // struct pointer
   const GeneralParams* parStructParent; // if any
@@ -159,7 +159,7 @@ class MexStructParam :public GeneralParams
         parStruct(paramStruct), parStructParent(parent), structName(string("")){};
     MexStructParam(const mxArray* paramStruct, const string& name):
         parStruct(paramStruct), parStructParent(NULL), structName(name){};
-    ~MexStructParam();
+    ~MexStructParam(){};
     void * 
       getMxArrayField(const string& field)
       {
diff --git a/mex/sources/estimation/ioutils.h b/mex/sources/estimation/ioutils.h
index bd1d72fe4..b7be90f17 100644
--- a/mex/sources/estimation/ioutils.h
+++ b/mex/sources/estimation/ioutils.h
@@ -22,7 +22,7 @@
 #include "SylvException.h"
 #include <map>
 #include <string>
-using namespace std;
+//using namespace std;
 
 
 struct charArraySt
@@ -36,9 +36,8 @@ class GeneralParams
 //  map <string, int> params;
 //  const char *structName;
 public:
-  GeneralParams();
-  GeneralParams( const string& parStructName, const string& base);
-  virtual ~GeneralParams();
+  GeneralParams(){};
+  virtual ~GeneralParams(){};
   virtual string& name()=0;
   virtual void * 
     getField(const string& field)=0;
diff --git a/mex/sources/kalman/sylv/cc/GeneralMatrix.cpp b/mex/sources/kalman/sylv/cc/GeneralMatrix.cpp
index f02f05cd0..a0ba0ccb2 100644
--- a/mex/sources/kalman/sylv/cc/GeneralMatrix.cpp
+++ b/mex/sources/kalman/sylv/cc/GeneralMatrix.cpp
@@ -15,6 +15,7 @@
 #include <cmath>
 #include <limits>
 
+//vector<int>nullVec(0);
 int GeneralMatrix::md_length = 32;
 
 GeneralMatrix::GeneralMatrix(const GeneralMatrix& m)
@@ -87,7 +88,7 @@ It ignores non-positive elements passing zero length vector is equivalent
 to Matlab operator ":" = all elements of that dimension in its order */
 GeneralMatrix::GeneralMatrix(const GeneralMatrix& a, const vector<int>&vrows, const vector<int>&vcols)
   {
-  int nrows, ncols;
+  int nrows=0, ncols=0;
   if (vrows.size()==0 && vcols.size()==0)
     {
     *this=a;
@@ -175,11 +176,11 @@ GeneralMatrix::multElements(const GeneralMatrix& m)
 GeneralMatrix& 
 GeneralMatrix::repmat(int multv, int multh)
   {
-  GeneralMatrix repMat=*(new GeneralMatrix ( multv*rows,  multh*cols));
+  GeneralMatrix* repMat=(new GeneralMatrix ( multv*rows,  multh*cols));
   for (int i=0;i<multv;++i)
     for (int j=0;j<multh;++j)
-      repMat.place(*this, multv*i,  multh*j);
-    return repMat;
+      (*repMat).place(*this, multv*i,  multh*j);
+    return *repMat;
   };
 
 
@@ -471,9 +472,9 @@ void
 GeneralMatrix::AssignByVectors(GeneralMatrix& a, const vector<int>& vToRows, const vector<int>& vToCols
       , const GeneralMatrix& b, const vector<int>& vrows, const vector<int>& vcols)
   {
-  int nrows, ncols,  tonrows, toncols;
-  const vector<int> *vpToCols, *vpToRows, *vpRows, *vpCols;
-  vector<int> *tmpvpToCols, *tmpvpToRows, *tmpvpRows, *tmpvpCols;
+  int nrows=0, ncols=0,  tonrows=0, toncols=0;
+  const vector<int> *vpToCols=0, *vpToRows=0, *vpRows=0, *vpCols=0;
+  vector<int> *tmpvpToCols=0, *tmpvpToRows=0, *tmpvpRows=0, *tmpvpCols=0;
 
   if (vToRows.size()==0 && vToCols.size()==0 &&vrows.size()==0 && vcols.size()==0)
     a=b;
@@ -579,10 +580,10 @@ GeneralMatrix::AssignByVectors(GeneralMatrix& a, const vector<int>& vToRows, con
               a.get((*vpToRows)[i]-1,(*vpToCols)[j]-1)=b.get((*vpRows)[i]-1, (*vpCols)[j]-1);
         }
       }
-    delete(tmpvpToCols); 
-    delete(tmpvpToRows);
-    delete(tmpvpRows);
-    delete(tmpvpCols);
+    if (tmpvpToCols) delete(tmpvpToCols); 
+    if (tmpvpToRows) delete(tmpvpToRows);
+    if (tmpvpRows) delete(tmpvpRows);
+    if (tmpvpCols) delete(tmpvpCols);
     }
   }
 
diff --git a/mex/sources/kalman/sylv/cc/GeneralMatrix.h b/mex/sources/kalman/sylv/cc/GeneralMatrix.h
index f1f8de98b..4afd0723d 100644
--- a/mex/sources/kalman/sylv/cc/GeneralMatrix.h
+++ b/mex/sources/kalman/sylv/cc/GeneralMatrix.h
@@ -8,7 +8,8 @@
 #include "Vector.h"
 #include <vector>
 using namespace std;
-vector<int>nullVec(0);
+//#define nullVec (const vector<int>(0))
+const vector<int>nullVec(0);
 
 class GeneralMatrix;
 
@@ -78,7 +79,7 @@ class GeneralMatrix {
     int rows;
     int cols;
     int ld;
-    GeneralMatrix * tmpGMp;
+    GeneralMatrix * tmpGMp;
 public:
     GeneralMatrix(int m, int n)
       : data(m*n), rows(m), cols(n), ld(m) {}