Open Files DENY_DOS

I have question about SAMBA in Vers. 11:
3.3.0pre1-1.2-1884-SUSE-SL11.0,x64
When i open a file from Windows XP Client, the File open with status
DENY_DOS, which option can i configure in smb.conf to solve the problem.

The old version is 2.x on SUSE 7.3
when i open here the file is in status DENY_NONE !

I need this to open MSACESS (mdb) Files!
Please help me…