Silk Test Classic includes record and replay support for WPF controls. In Silk Test 2009, WPF replay support was provided. However, with the release of Silk Test 2010, the earlier WPF controls, which were prefixed with MSUIA, are deprecated and users should use the new WPF technology domain instead. When you record new test cases, Silk Test Classic automatically uses the new WPF technology domain.
For a complete list of the controls available for WPF testing, see the WPF Class Reference.