bonobo_activation_registration_env_set:
        env_value->name  = g_strdup (name);
        env_value->value = value ? g_strdup (value) : NULL;
                                                                               
                    
        reg_env = g_slist_prepend (reg_env, env_value);
                                                                               
                    
bonobo_activation_registration_env_free:
        for (l = reg_env; l; l = l->next)
                g_free (l->data);
                                                                               
                    

note the absense of freeing ->name and ->value
--- bonobo-activation-register.c~       2003-02-01 15:15:34.000000000 +0100
+++ bonobo-activation-register.c        2003-02-01 15:15:34.000000000 +0100
@@ -458,9 +458,14 @@
 bonobo_activation_registration_env_free (GSList *reg_env)
 {
        GSList *l;
-
-       for (l = reg_env; l; l = l->next)
+       RegistrationEnvValue *env_value;
+
+       for (l = reg_env; l; l = l->next) {
+               env_value = (RegistrationEnvValue*)l->data;
+               g_free(env_value->name);
+               g_free(env_value->value);
                g_free (l->data);
+       }
  
        g_slist_free (reg_env);
 }

proposed solution: