diff --git a/gurobi/include/gurobi.h.in b/gurobi/include/gurobi.h.in
index 6dfd8ee..ccc8242 100644
--- a/gurobi/include/gurobi.h.in
+++ b/gurobi/include/gurobi.h.in
@@ -110,6 +110,9 @@ typedef struct _GRBenv GRBenv;
 #define GRB_INT_ATTR_HASDUALNORM   "HasDualNorm"
              
 #define GUROBI_ADAPTOR
+
+DLLSYMBOL int gurobi_adaptor_load(char* err_msg, unsigned int err_msg_len);
+DLLSYMBOL void gurobi_adaptor_unload();
                                      
 [gurobi_core.h]
 
diff --git a/gurobi/include/gurobi_c.h b/gurobi/include/gurobi_c.h
index 44e31c6..e351edc 100644
--- a/gurobi/include/gurobi_c.h
+++ b/gurobi/include/gurobi_c.h
@@ -110,6 +110,9 @@ typedef struct _GRBenv GRBenv;
 #define GRB_INT_ATTR_HASDUALNORM   "HasDualNorm"
              
 #define GUROBI_ADAPTOR
+
+DLLSYMBOL int gurobi_adaptor_load(char* err_msg, unsigned int err_msg_len);
+DLLSYMBOL void gurobi_adaptor_unload();
                                      
 #define GRBaddconstr adaptor_GRBaddconstr
 DLLSYMBOL int (__stdcall *GRBaddconstr)(GRBmodel *, int, int *, double *, char, double, const char *);