cmd.exe: Add ASSOC command.

programs/cmd/Tr.rc

diff --git a/programs/cmd/Tr.rc b/programs/cmd/Tr.rc
index bdecde3..6977407 100644
--- a/programs/cmd/Tr.rc
+++ b/programs/cmd/Tr.rc
@@ -232,4 +232,5 @@
   WCMD_CONFIRM, "Are you sure"
   WCMD_YES, "Y"
   WCMD_NO, "N"
+  WCMD_NOASSOC, "File association missing for extension %s\n"
 }