Access to VASP is controlled by a very strict authorisation mechanism:

• First, you must be personally registered on an official licence agreement issued by the VASP developers. Registration is on this Page.
• Next, you should make a request to use VASP on our machine via an e-mail to the user support team. The User Support Team must then contact VASP to ensure that you are actually registered before being able to give you access to the software.

Note that this procedure can take several days.