Some links.

[https://www.virtualbox.org/browser/vbox/trunk/src/VBox/Additions/haiku Client Additions on VirtualBox site(source)][[BR]]
[http://www.cs.auckland.ac.nz/~clemens/haiku-vbox-additions-20110723-r2.zip pre compiled][[BR]]

[https://www.haiku-os.org/guides/virtualizing/virtualbox how to run VirtualBox][[BR]]
[http://www.haiku-os.org/community/forum/how_install_virtualbox_guest_additions how_install_virtualbox_guest_additions (Forum)][[BR]]

gsoc 2011 by scgtrp[[BR]]
[https://www.haiku-os.org/blog/scgtrp/2011-04-29_gsoc_introduction_virtualbox_guest_additions 2011-04-29_gsoc_introduction_virtualbox_guest_additions][[BR]]
[https://www.haiku-os.org/blog/scgtrp/2011-05-25_vbox_guest_additions_end_bonding_period_first_quarter_goals 2011-05-25_vbox_guest_additions_end_bonding_period_first_quarter_goals][[BR]]
[https://www.haiku-os.org/blog/scgtrp/2011-06-17_vbox_guest_additions_status_second_quarter_goals 2011-06-17_vbox_guest_additions_status_second_quarter_goals][[BR]]
[https://www.haiku-os.org/blog/scgtrp/2011-07-15_vbox_guest_additions_midterm_status_report 2011-07-15_vbox_guest_additions_midterm_status_report][[BR]]
[https://www.haiku-os.org/blog/scgtrp/2011-08-04_vbox_guest_additions_34_term_report 2011-08-04_vbox_guest_additions_34_term_report][[BR]]
[https://www.haiku-os.org/blog/scgtrp/2011-09-05_vbox_guest_additions_slightly_late_final_progress_report 2011-09-05_vbox_guest_additions_slightly_late_final_progress_report][[BR]]

[http://www.freelists.org/post/haiku-development/RFC-GSOC-2011-VirtualBox-guest-additions-added-to-official-optional-packages RFC-GSOC-2011-VirtualBox-guest-additions-added-to-official-optional-packages][[BR]]