when I try to open file with another user on CYGWIN , I get access denied message

[Alex]

I have windows 2008 server and external partner requested me to install 
CGYWIN on it so they can send a file to via SSH. I created a domain user 
called test1 and they sent me the public key and installed home folder. 
They can send the file without any problem. I can able to read and 
delete if I login to windows server with test1 username.

My problem is I can not open that files with another username. I have a 
username call test2 and I need to login to windows server with this 
username and run the script to import the files from test1 folder. I got 
access denied message when I try to open it.

file permission show ;

-rwx------

I changed the umask in profile to 002 , but did not fix the problem.

Any idea?

By the way I have a little knowledge of linux

thank

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