GUI\URI
Open any kind of URI (Uniform Resource Identifier), e.g. html link or
file names, for example:
GUI\URI "http://www.iram.fr/IRAMFR/GILDAS/" "GILDAS Web Page"
GUI\URI gag_doc:pdf/gildas-intro.pdf "GILDAS Introduction"
The choice of the software used to open the URI is let as much as possi-
ble to the system (which should itself honor the user's preferences).