If a testcase is linked to a testplan, you can run it from the testplan:

1. Open the testplan.

2. Select the test description line which has the testcase linked.

3. Click Run/Testcase menu. The Run Testcase dialog box shows up.

4. Click the Run button. SilkTest starts to run the test case.

5. Do not touch mouse or keyboard, to avoid interrupting the test case execution.

6. SilkTest finishes executing the testcase. The Restuls window shows up with the execution result.

7. Review the execution result.