Hi, my intention was to control some programs which exists on the filesystem (Linux6.4) within Zope The programs exists in a directory (Rights --> u-g-o 7-7-0) which is owned by the user "user1" in the group "group1". The Zope process runs under the user "user2" To allow the Zope-process accessing the filesystem-directory i have included the user "user2" into the group "group1". So far so good :-) If i log into the system via a shell - with "user2" - i have full access on the directory --as expected -- Now, if i try do access these directory from zope, doesn't matter which way i chosse (LocalFS,ExternalMethod) i get a Error-Message like "Sorry, you are not allowed to access..." Why doesn' t zope recognize that the user "user2" is also a "group1" -member ? Any ideas ??? Ralph