use Win32::NetResource;

my $RemoteShare = {
                 'Scope' => RESOURCE_CONNECTED,
                 'Type'=> RESOURCETYPE_DISK,
                 'DisplayType' => RESOURCEDISPLAYTYPE_GENERIC,
                 'Usage' => RESOURCEUSAGE_CONNECTABLE,
                 'LocalName' => "Y:",
                 'RemoteName' => '\\\\server\c$',
                 'Comment' => "OSD A Berlin"
                };
                
 my $UserName = "";
 my $Password = "";
 my $Connection = 0;
 my $ErrorCode = "";
 my $Force = 0; # <---------- keine Ahnung, was da für ein Wert hinkommt. In der Doku steht leider auch nix.

#
# Netzwerkresource trennen
#
Win32::NetResource::CancelConnection($RemoteShare,$Connection,$Force)
  or print "unable to cancel conected network\n";