title: File / folder chooser dialog from a Windows batch script
body: <p>Typically, asking the user to supply a file name to a batch script is a messy affair, requiring no misspellings, quotes around paths with spaces, and so forth.  Unfortunately, users aren't well-known for accuracy.  In situations where input file location is not known until runtime, using a GUI for file selection input reduces the likelihood of user error.</p>
  
  <p>Is there a way to invoke a <code>File... Open</code> style gui file chooser or folder chooser from a Windows batch script?</p>
  
  <p>If the script user has PowerShell or .NET installed, it is possible.  See the answer below.</p>
  
  <p>I'm also interested to see what other solutions anyone else can offer.</p>