how to open read only file that will be open for notification in word?

Hi

i am tring to write a vb script that use word to do the following:

1 .open document from pc A.

2. open the same document ( use a "share" folder ) from pc B. the file will be read only but open for notification to the time that the file will be release for editing.

3. close file from pc A.

4. view file changes in pc B.

any ideas on how to implement it

thanks in advanced

lior