[Zope] Preventing WebDAV locks?

[Capesius, Alan]

I have some pages configured to return Excel format to the user using the
technique detailed at: http://twsite.bizland.com/twzop0014.htm

When executed from Netscape everything works fine, when executed from IE
5.5, if the user opens the file directly into Excel via embedded OLE (clicks
open or has the XLS associated), the client is locking the file on the
server, preventing other users from accessing the data. 

Another client attempting to access the same file will not receive a
response until the first user times out (3 minutes).

Zope is unresponsive until the lock is released.

Is it possible to prevent these client locks from the server? or to force
read-only in Excel?
The user is anonymous.


[27/Feb/2001:21:31:57 -0500] "LOCK /IOTA/report_ordersmtd?format=xls
HTTP/1.1" 200 817 "" "Microsoft Data Access Internet Publishing Provider
DAV"
[27/Feb/2001:21:32:21 -0500] "GET /IOTA/report_ordersmtd?format=xls
HTTP/1.1" 200 71207 "" "Microsoft Data Access Internet Publishing Provider
DAV"
[27/Feb/2001:21:32:21 -0500] "UNLOCK /IOTA/report_ordersmtd?format=xls
HTTP/1.1" 204 240 "" "Microsoft Data Access Internet Publishing Provider
DAV"


Thanks,

Alan Capesius, MCSE/NTCIP+20
Technical Support Engineer
Sysmex Corporation of America
capesiusa@sysmex.com