This only applies to Artisoft LANs.

    Fixing Sharing Violations with NetTalk for Windows
    --------------------------------------------------

    If you encounter sharing violations when using NetTalk for Windows, 
    the .EXE and .DLL file attributes must be flagged to read-only. To do 
    this, have all users exit NetTalk for Windows (by closing the icon). 
    The read-only attributes can then be set either in Windows File 
    Manager or in DOS. 

    To set the attributes in Windows File Manager, bring up File Manager 
    and switch to the NetTalk installation directory. Now click on 'File' 
    and select 'Select Files...'. At the file name entry box, type *.EXE 
    and press Enter or click on 'Select'. Now back at the file name 
    entry, type *.DLL, press Enter or click on 'Select', and then click 
    on 'Close'. Now click on 'File' again and select 'Properties...'. 
    Click the 'Read Only' box so it has a check or X in it. The boxes 
    'Hidden' and 'System' should be unchecked. Now press Enter or click 
    on 'Ok'. 

    To set the attribute in DOS, change the current directory to the 
    NetTalk installation directory. Now type ATTRIB +R *.EXE (enter). 
    Then type ATTRIB +R *.DLL (enter). 
    
    The read-only attribute should now allow multi-user execution within 
    Windows.