The file may be located in folder /aspnet_client/system_web/1_0_3705_288/.
Below there should be a text box, a button marked "Test" and the word "Label".
1. Click the test button with the text box blank/empty and the phrase "Required Field
Validator" should appear in red to the side of the text box.2. Enter text in the text box
and click the test button and the contents of the text box should overwrite the word Lable"