I created a simple application object to associate it with everyone. But
it is strange that workstations can not see this object in app explorer.
I have all the application grouping into applications container (which
is application.company, all the groups into users container (which is
users.company), and all the users still at company container. Is
something wrong with the search policy to cause this kind of problem? If
yes, why some of the application objects work and some don't?

Can someone give any advice or suggestion?

Thanks a lot!