Hi mav.. Thanks for your reply. When i tried to debug the program when i first faced this problem I found that the FileSystemWatcher was only holding the file:confused: So when i tried google it, many others had also said the same. That is why the wait logic was introduced. Yes i can do away with the recursion logic. Regards, G3

Look up WM_COMMAND in MSDN to learn how to properly format a WM_COMMAND message. The wParam and lParam parameters have special meanings that you are ignoring. "You're obviously a superstar." - Christian Graus about me - 12 Feb '03 "Obviously ???  You're definitely a superstar!!!" mYkel - 21 Jun '04 Within you lies the power for good - Use it! Honoured as one of The Most Helpful Members of 2004

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Thanx for all ur responses. Its working now !!! I tried first to post a user defined message from the sheet's InitDialog. But that did not work as expected. Then i tried the same from the InitDialog of the property page. And it worked just as required. Thanx again.

Thanks a lot. That works.