Versions

5, 7, 8313, 1002	12.50%
5, 7, 7725, 1624	6.25%
5, 7, 7529, 1424	62.50%
5, 7, 6406, 1642	6.25%
5, 7, 6406, 1642	6.25%
5, 5, 4723, 1820	6.25%

There are 6 versions of swg64.dll in the wild, the latest version being 5, 7, 8313, 1002. It is integrated as a plugin to Internet Explorer as a Browser Helper Object, often without any obvious user interface, and will load for each instance of IE. The average file size is about 332.1 KB. The file is a digitally signed and issued to Google Inc by VeriSign. The executable is a .NET framework assembly utilizing the CLR.

Google Toolbar Notifier is a Windows service that runs in the background to make sure that Google is your default search engine and is automatically installed on your PC when you install many of the Google applications such as the Google Toolbar or Google Chrome. This windows service is simply designed to make sure the default search provider is not changed.