diff --git a/example/Jamfile.v2 b/example/Jamfile.v2
index 8a4204d2..b2ccae93 100644
--- a/example/Jamfile.v2
+++ b/example/Jamfile.v2
@@ -80,7 +80,7 @@ run graph_property.cpp ;
 run graph-assoc-types.cpp ;
 run graph-property-iter-eg.cpp ;
 run graph-thingie.cpp ../build//boost_graph ;
-run graphviz.cpp ../build//boost_graph ;
+run graphviz.cpp ../build//boost_graph : $(TEST_DIR)/graphviz_example.dot ;
 run grid_graph_example.cpp ;
 run grid_graph_properties.cpp ;
 exe hawick_circuits : hawick_circuits.cpp ;
@@ -101,7 +101,6 @@ run king_ordering.cpp ;
 run knights_tour.cpp ;
 run kruskal-example.cpp ;
 run kuratowski_subgraph.cpp ;
-run last-mod-time.cpp : $(TEST_DIR)/makefile-dependencies.dat ;
 run make_biconnected_planar.cpp ;
 run make_connected.cpp ;
 run make_maximal_planar.cpp ;
@@ -217,6 +216,8 @@ explicit girth ;
 #
 # run astar_maze.cpp ;
 # run kevin-bacon2.cpp /boost/serialization//boost_serialization : $(TEST_DIR)/kevin-bacon.dat ;
+# Crashes with msvc-12.0:
+# run last-mod-time.cpp : $(TEST_DIR)/makefile-dependencies.dat ;
 #
 # This one dereferences a null-iterator:
 #
diff --git a/example/graphviz.cpp b/example/graphviz.cpp
index a21d8541..4e357aeb 100644
--- a/example/graphviz.cpp
+++ b/example/graphviz.cpp
@@ -71,9 +71,9 @@ void test_graph_read_write(const std::string& filename)
   write_graphviz_dp(std::cout, g, dp, std::string("id"));
 }
 
-int test_main(int, char*[])
+int test_main(int argc, char* argv[])
 {
-  test_graph_read_write("graphviz_example.dot");
+  test_graph_read_write(argc >= 2 ? argv[1] : "graphviz_example.dot");
   
   return 0;
 }