OpenWinURL is a simple Workbench Tool, which can be used with DefIcons &
OpenURL, so that double-clicking on a Windows .URL file causes your web browser
to open the URL address contained in the file.

There is only an OS4 executable, but the PortablE source code is also provided,
so it can be compiled for OS3, AROS, etc if you want (untested but it should
work as long as DefIcons & OpenURL are installed).

Changes in this release:
* Switched to OS4.1.1's URLOpen command, as OpenURL wasn't working reliably for
me anymore.
* Reduced executable size by 82KB, at the expense of being OS4.1 only (which
URLOpen is anyway).
* Reduced executable size by 73KB, by asking GCC to optimise the executable
(doh).
  The executable is now nearly half the size of previous releases!