how to get the content of a pdf file on window

Hi all,



I have a scenario as following

- Enter a year

- Click on View button

- A pdf file will be displayed in another window



I read some methods and I see that MSAAObject is one of solutions.

1) The MSAA Open Applications plug-in is installed and enabled in TestComplete (refer to MSAA config 1.jpg)

2) Enable MSAA support for AVL_AVView (refer to MSAA config 2.jpg)



I read the blog "http://blog.smartbear.com/post/06-06-01/Use-TestComplete-to-Fill-InfoPath-2003-Forms-Automatically/" and see that after config two above steps, TestComplete’s Object Browser will displayed MSAA object with 


Could anybody help me to explain it ? And it would be great if giving me a script to get the content of pdf file on window.



Thanks so much.

Hoa