virtualbox.org

After installing virtualbox x64 2.1 on vista x64, I had critical error.

critical error
could not make virtalbox com.
co_e_server_exec_failure (0x80080005)


Is this version not available on vista x64?

Please make sure you downloaded the correct version (windows, AMD64). Please uninstall any older versions of VirtualBox. If the new installation still does not work, please open a bug report.