Thank you to have choisits the webpage API VDUMS, but unfortunately this Web page is suspended temporarily because the version v0.3 of these API present of the security breach as regards hacking  and cracking !
A new version v0.4 will be available at least as from November 2011.
We apologize for any inconvenience this may cause for this nuisance to cause!
If you wish to develop your virtual disk , thank you to test the API VDRS-VDFS (available)!