Tracking system events.. Mouse double click / Right click in OS environment

Hello all,
I have stored files in my computer which are generated using my application.These files own my application specific file extension. I have registered the file association to windows registry and when each time the file is opened in OS environment (using double click or rignt click on the icon--> open etc.,).. i need to access the file's absolute path in order to open it using my application. How to track those system events (Double clicks, right click--> open etc.,)..can anyone help me out??..
Thank you in advance!!

Yeah.. the OS will pass the necessary information. How do my application will receive the parameter?.. That has to be done by my coding.. right??..
For example, if an .doc file is opened the OS will open MS-Word and how ll the MS-Word get those parameters. In the same way, how can i receive that parameters to my application..?..this is where i am struggling... i use J2SDK1.4.2_11 and Eclipse 3.1.
Expecting ur response!!
Thanks in advance!!

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