>Hello, does anyone know how I can delete especific files, let me say
>*.vir, from a file space?

That is unsupported: it is the intention of the product that what is
backed up is intended to be preserved, and so there is no supported
means for either the client or server admin to delete backup files.
(Archive files can, of course, be deleted from filespaces.)
See topic "File, selectively delete..." in my notes at
http://people.bu.edu/rbs/ADSM.QuickFacts for some ways around this.
   Richard Sims, BU