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.
The Web Service Checkpoints sample demonstrates how to perform various kinds of checkpoints.
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>\Common\Checkpoints folder.
TestComplete project suites
<TestComplete 15 Samples>\Common\Checkpoints\Web Service