[Haskell-cafe] avoiding command window with wxHaskell on Windows?

I'm experimenting with wxHaskell. I created a small program with it on Windows. (Well, small in source form, not so small in binary form :-) The program runs fine when invoked at a Windows command line. But if I double-click the .exe file, I get a command window that hangs around (but doesn't appear to do anything, fortunately) until the program terminates. How can I avoid this command window? I'm using GHC 6.6 and wxHaskell 0.9.4 on Windows XP. Dean