Vista - regarding windows compound binary file format

Hi,

I am adding one storage named "storage1" in ms word file using
structured storage APIs.
and within "storage1" i m adding stream named "stream1" for adding
some data.


Everything is working succesffully. I am successfully reading/writing
data from "stream1"
The problem occurs only when i open the ms word file and make some
changes in it and then press the "save" button. After save operation
the storage created by my application gets deleted from ms word file.


I dont know why this problem is occuring.
Can someone tell me how to persist the storage named "storage1" in
ms
word file permanently.


Thanks and Best Regards,
Vinita Batra.