open url browser param url contain given url open url url os util win runtim runtim exec rundll url dll file protocol handler url os util mac loader cl loader loader cl load com appl mrj mrj file util argtyp method method open url argtyp object url invok instanc except cnfe defin log lp log granular type statement lp log local nest statement log error cnfe log info try browser netscap endif commlin netscap url runtim runtim exec commlin runtim runtim exec firefox url io except ioe didn work defin log lp log granular type statement log error ioe endif 