diff --git a/xorriso/base_obj.c b/xorriso/base_obj.c
index 2ad83e50..4ad8d53e 100644
--- a/xorriso/base_obj.c
+++ b/xorriso/base_obj.c
@@ -447,6 +447,10 @@ int Xorriso_destroy(struct XorrisO **xorriso, int flag)
  m= *xorriso;
  if(m==NULL)
    return(0);
+
+ /* Give up drives and image to unref all connected xorriso objects */
+ Xorriso_give_up_drive(m, 3);
+
  if(m->in_charset!=NULL)
    free(m->in_charset);
  if(m->out_charset!=NULL)
diff --git a/xorriso/filters.c b/xorriso/filters.c
index e2031b87..335b2cb4 100644
--- a/xorriso/filters.c
+++ b/xorriso/filters.c
@@ -118,6 +118,8 @@ int Xorriso_extf_destroy(struct XorrisO *xorriso, struct Xorriso_extF **filter,
  if(cmd != NULL) {
    if(cmd->refcount > 0)
      return(0);
+   if(cmd->path != NULL)
+     free(cmd->path);
    if(cmd->suffix != NULL)
      free(cmd->suffix);
    if(cmd->argv != NULL) {
@@ -128,6 +130,7 @@ int Xorriso_extf_destroy(struct XorrisO *xorriso, struct Xorriso_extF **filter,
    }
    if(cmd->name != NULL)
      free(cmd->name);
+   free((char *) cmd);
  }
  free((char *) *filter);
  *filter= NULL;
diff --git a/xorriso/parse_exec.c b/xorriso/parse_exec.c
index 08065a7f..bc3f1a2a 100644
--- a/xorriso/parse_exec.c
+++ b/xorriso/parse_exec.c
@@ -181,9 +181,9 @@ no_memory:;
 
  ret= 1;
 ex:;
+ if(patterns!=NULL)
+   free((char *) patterns);
  if(ret<=0) {
-   if(patterns!=NULL)
-     free((char *) patterns);
    Sfile_destroy_argv(&filec, &filev, 0);
  } else {
    *optc= filec;
diff --git a/xorriso/write_run.c b/xorriso/write_run.c
index 4dbceac0..57053f78 100644
--- a/xorriso/write_run.c
+++ b/xorriso/write_run.c
@@ -1215,6 +1215,7 @@ int Xorriso_pacifier_loop(struct XorrisO *xorriso, struct burn_drive *drive,
    break;
    }
  }
+ iso_image_unref(image);
  return(1);
 }
 
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 5fa59bbd..9528cd27 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2011.02.12.172930"
+#define Xorriso_timestamP "2011.02.14.090737"