As far as I know, OLAP stands for "On-Line Analytical Processing", and it is not related to any special kind of controls. Anyway, please note that TestComplete supports testing both Windows and web applications, so, most probably, the tool will work for you. To learn more about specially supported third-party controls, see the "Working With Custom Controls" help topic. To learn how to test web applications, please see the "Web Testing" help topic. If this information is not enough for you, please send me the following information so I can help you:
1. What is the value of the WndClass property of the control in question (you can check it by using the Object Browser)? If the control is a .NET control, please tell me the value of its ClrFullClassName property.
2. What is the name of the component used to implement the control?
3. What language and IDE were used to create the application?
Also, if the control is not a standard one, let me know its vendor and version.