diff --git a/scripts/asarDump.js b/scripts/asarDump.js
new file mode 100644
index 000000000..7b3eeb98c
--- /dev/null
+++ b/scripts/asarDump.js
@@ -0,0 +1,41 @@
+// console.log(process.argv);
+// console.log(process.mainModule.filename);
+// console.log(__filename);
+// console.log(__dirname);
+
+var fs = require("fs");
+var path = require("path");
+var pickle = require('chromium-pickle-js');
+
+var readArchiveHeaderSync = function (archive) {
+    var fd = fs.openSync(archive, 'r');
+    var size;
+    var headerBuf;
+    try {
+        var sizeBuf = new Buffer(8);
+        if (fs.readSync(fd, sizeBuf, 0, 8, null) !== 8) {
+            throw new Error('header size');
+        }
+        // console.log(sizeBuf.toString("hex"));
+
+        var sizePickle = pickle.createFromBuffer(sizeBuf);
+        size = sizePickle.createIterator().readUInt32();
+        // console.log(size);
+
+        headerBuf = new Buffer(size);
+        if (fs.readSync(fd, headerBuf, 0, size, null) !== size) {
+            throw new Error('header');
+        }
+    } finally {
+        fs.closeSync(fd);
+    }
+
+    var headerPickle = pickle.createFromBuffer(headerBuf);
+    var header = headerPickle.createIterator().readString();
+    return { header: header, headerSize: size };
+}
+var asarHeader = readArchiveHeaderSync(path.join(process.cwd(), process.argv[2]));
+// console.log(asarHeader);
+
+var head = asarHeader.header.replace(/"offset":"[^"]+"/g, '"offset":"0"');
+console.log(JSON.stringify(JSON.parse(head), null, 2) + "\n");