Make a directory somewhere to be used as base directory for the busybox-w32 stuff itself (eg. C:\Tools\busybox). The busybox-start.cmd script would be useful to start an interactive command line from the desktop.
busybox-start.cmd (see below)
busybox/ (base dir)
busybox.exe(https://frippery.org/files/busybox/busybox.exe)
busybox64.exe(https://frippery.org/files/busybox/busybox64.exe)