You can use ShellExecute API #12636 or WSH Run method http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/wsMthRun.asp.

lcFileName = FULLPATH("apss.html")
* ShellExecute
DECLARE INTEGER ShellExecute IN shell32.dll ;
	INTEGER hndWin, STRING cAction, ; 
	STRING cFileName, STRING cParams, ; 
	STRING cDir, INTEGER nShowWin
ShellExecute(0, "Open", lcFileName, "", "", 1)
*WSH
oShell = CREATEOBJECT('WScript.Shell')
oShell.Run(lcFileName)

>I am trying to launch a html file from a command button. I have tried the
>getfile() method but you have to select the file you want. I want it to do
>it automately "(apss.html"). How can I do did?
>
>
>Thank You In Advance and Merry Christmas To All
>
>
>Winfred Majors