1. Copy Brc to the directory containing acme.exe (say C:\acme-sac.)
2. Add the following plumb rule to /usr/user/lib/plumbing.

   # Microsoft Windows file names
   kind is text
   data matches '(^[a-zA-Z]):(.*)'
   plumb alwaysstart acme
   plumb start /dis/sh.dis -c 'plumb -d edit /n/^`{echo $1 | tr A-Z a-z}^`{echo $2 | tr ''\\ '' /␣}'
   

3. Mount the Windows file system and export the Inferno name space in Acme SAC:

   trfs '#UC:/' /n/c
   trfs '#UD:/' /n/d
   listen -Av 'tcp!*!styx' {export /&}
   

4. Change file associations in Windows.

   ftype txtfile=C:\acme-sac\acme.exe -r C:\acme-sac sh.dis /Brc %1%

Clean: rsc's Clean for Inferno