I am having a couple of problems with READPROFILESTRING: probably just not understanding how it is supposed to work...

Code:
 Break Off
; This script adds the following lines to the Appsrv.ini file in the users profile
;	SSOnUserSetting=On
;	EnableSSOnThruICAFile=On

$appsrvini = "%USERPROFILE%\Application Data\ICAClient\appsrv.ini"

;Does File Exist?

IF EXIST ($appsrvini) = 1

	;Does section [WFCLIENT] Exist?
	$nul=READPROFILESTRING ($appsrvini, "WFClient", "")   
	IF @ERROR = 0 ;if Section exists
		;Add/modify  lines to [WFCLIENT] section
		$nul=WriteProfileString($appsrvini,"WFClient","SSOnUserSetting","On")
		$nul=WriteProfileString($appsrvini,"WFClient","EnableSSOnThruICAFile","On")
	ELSE
		? @ERROR
		;WFClient section missing from appsrv.ini file.
		?"WFClient section missing from appsrv.ini file."
	ENDIF

ELSE
	;appsrv.ini does not exist in the users profile
	?"appsrv.ini does not exist in the users profile"
ENDIF

	
?"finished"




get $nul


I test the script and it works fine.
I remove the [WFclient] section to test the result and the READPROFILESTRING still returns a '0'. When I echo $nul at this point I find the string contains:

SSOnUserSetting
EnableSSOnThruICAFile

This explains why it is returning a '0' - but where on earth is it picking these entries up from. The section does not exist in the ini file.

any thoughts welcome...