diff --git a/std-script/box-win/box.cpp b/std-script/box-win/box.cpp
new file mode 100644
--- /dev/null
+++ b/std-script/box-win/box.cpp
@@ -0,0 +1,67 @@
+/*
+
+This is originally taken from Fossil Grader.  It is modified so that
+it has the same interface as the sandbox module for Cafe Grader.  By
+the way, the Cafe-Grader's sandbox module is from Moe grader,
+distributed under GPL.
+
+*/
+
+#include <cstdio>
+#include <cstring>
+#include <cstdlib>
+#include "execute.h"
+
+char* input_filename = 0;
+char* output_filename = 0;
+double time_limit = 1;
+int memory_limit = 16*1024*1024;  // in bytes
+char* exe_filename = 0;
+
+// process_argument takes an array of arguments starting from argv[0].
+void process_argument(int argc, char* argv[])
+{
+  for(int i=0; i<argc; i++) {
+    if(argv[i][0]=='-') {  // options
+      char opt = argv[i][1];
+      char* arg = argv[i+1];
+      switch(argv[i][1]) {
+      case 'i':
+	input_filename = strdup(arg);
+	break;
+      case 'o':
+	output_filename = strdup(arg);
+	break;
+      case 't':
+	time_limit = atof(arg);
+	break;
+      case 'm':
+	memory_limit = atoi(arg)*1024;  // in bytes
+      }
+      i++;  // skip over option
+    } else {
+      // not an option --> executable
+      exe_filename = strdup(argv[i]);
+    }
+  }
+}
+
+void display_help()
+{
+  printf("Using: trun <executable>\n");
+  printf("Options:\n");
+  printf("   -i <input>\n");
+  printf("   -o <output>\n");
+  printf("   -t <time limit (in seconds)>\n");
+  printf("   -m <memory limit (in kilobytes)>\n");
+}
+
+main(int argc, char* argv[])
+{
+  process_argument(argc-1, &argv[1]);
+  if(exe_filename==0)
+    display_help();
+  else
+    execute(exe_filename, input_filename, output_filename, 
+	    time_limit, memory_limit);
+}