Windows equivalent of whereis?

The where command does what you want and goes back at least to the resource kit for Windows 98, and is included by default in Server 2003, Vista, and newer: If executed with no arguments (on Vista), it results in one of my favorite messages: If executing in PowerShell, be sure to include '.exe' to distinguish from any 'where' aliases or scripts along the path. ('where' is a typical alias for Where-Object.ps1)