TestComplete samples (both built-in and additional) are located in the <Users>\Public\Public Documents\TestComplete 15 Samples folder.
Some file managers display the Public Documents folder as Documents.
About
Web Open Application samples contain a web Open Application, called Orders. This application allows you to work with a table of purchase orders: you can add and view the list of existing orders, add new orders to this list, as well as modify or remove existing ones.
A sample Silverlight application resides on the SmartBear web site:
secure.smartbearsoftware.com/samples/testcomplete15/silverlight/orders.html
This sample is a part of the additional sample package. To use it, download this package from support.smartbear.com/testcomplete/downloads/samples and install it.
After the installation is over, you can find the sample in the <TestComplete 15 Samples>\Web\Orders folder.
Files
TestComplete project suite
<TestComplete 15 Samples>\Web\Orders\Silverlight