Index: trunk/src/file.c
===================================================================
--- trunk/src/file.c	(revision 1304)
+++ trunk/src/file.c	(revision 1305)
@@ -1259,7 +1259,7 @@
 
 int ReadNetlist(char *filename)
 {
-	static char *command = NULL;
+	char *command = NULL;
 	char inputline[MAX_NETLIST_LINE_LENGTH + 1];
 	char temp[MAX_NETLIST_LINE_LENGTH + 1];
 	FILE *fp;
@@ -1283,14 +1283,15 @@
 	}
 	else {
 		used_popen = 1;
-		free(command);
 		command = EvaluateFilename(Settings.RatCommand, Settings.RatPath, filename, NULL);
 
 		/* open pipe to stdout of command */
 		if (*command == '\0' || (fp = popen(command, "r")) == NULL) {
 			PopenErrorMessage(command);
+			free(command);
 			return (1);
 		}
+		free(command);
 	}
 	lines = 0;
 	/* kind = 0  is net name
Index: trunk/src/parse_l.c
===================================================================
--- trunk/src/parse_l.c	(revision 1304)
+++ trunk/src/parse_l.c	(revision 1305)
@@ -2369,8 +2369,7 @@
 	else
 	  {
 	    used_popen = 1;
-	    /* release old command and create new from template */
-	    free (command);
+
 	    command = EvaluateFilename(Executable, Path, Filename, Parameter);
 
 	    /* open pipe to stdout of command */
@@ -2377,8 +2376,10 @@
 	    if (*command == '\0' || (yyin = popen(command, "r")) == NULL)
 	      {
 		PopenErrorMessage(command);
+		free(command);
 		return(1);
 	      }
+			free(command);
 	  }
 	}
 	else {
Index: trunk/src/parse_l.l
===================================================================
--- trunk/src/parse_l.l	(revision 1304)
+++ trunk/src/parse_l.l	(revision 1305)
@@ -250,8 +250,7 @@
 	else
 	  {
 	    used_popen = 1;
-	    /* release old command and create new from template */
-	    free (command);
+
 	    command = EvaluateFilename(Executable, Path, Filename, Parameter);
 
 	    /* open pipe to stdout of command */
@@ -258,8 +257,10 @@
 	    if (*command == '\0' || (yyin = popen(command, "r")) == NULL)
 	      {
 		PopenErrorMessage(command);
+		free(command);
 		return(1);
 	      }
+			free(command);
 	  }
 	}
 	else {