Read/Write MS Word docs

[PEChumbley at aol.com]

I have an application where I read in Microsoft Word (.doc) documents as if 
they are a text file and then search for phrases within them.  The control 
characters in the document appear as gibberish so I am still able to search 
for the phrases in the readable portion of the file.  If I get a match, I 
then write the text to a file with a new name but still with a ".doc" file 
extention.  So basically, I am looking for a particular Word document and 
then renaming it.  My problem is that MS Word will not open the new file.  I 
get an error message saying the "document name or path is not valid" when 
both the document name is simply of the form "CR1000.doc" and path is 
correct.  I also tried it with a binary read and got the same result.  Has 
anyone had any experience with this situation?  Am I changing something in 
the file when I read it in and write it back to a file such that Word no 
longer will open it?

Philip Chumbley