How i can install BusyBox on Virtual Machine? For instance, VMVare or VirtualBox? Where I can see some manuals about this problem?
You can't use Busybox alone in a virtual machine.
From the Busybox FAQ:
Busybox is a package that replaces a dozen standard packages, but it is not by itself a complete bootable system.
Although busybox being a package and therefoe unable to boot by itself, there's a linux distribution called 4MLinux, its "Core" edition is a bare, minimal distro, under 5 MB in size, that relies on busybox.
From the official help file:
The minimal (core) 4MLinux system includes: /bin/busybox (BusyBox), /bin/sh (symlink to BusyBox), /dev/null (device node), /etc/init.d/rcS (sysinit script), /lib/ld-2.18.so (glibc library required by Busybox), /lib/ld-linux.so.2 (symlink to ld-2.18.so), /lib/libc-2.18.so (glibc library required by Busybox), /lib/libc.so.6 (symlink to libc-2.18.so), /lib/libm-2.18.so (glibc library required by Busybox), /lib/libm.so.6 (symlink to libm-2.18.so), /sbin/init (symlink to Busybox). The above set of files is enough to boot 4MLinux using some kind of boot disk. All the other essential files and directories are created/installed by rcS during the first startup.