I have found a strange behavior of Microsoft.XMLHTTP under a Web Service. Some of my methods are calling this method. This method queries a transaction to the other server. It can either receive an XML or a string. So, this is why I am checking for EMPTY(loXML.XML). If it is, I am returning the error message. Otherwise, the XML is returned.

FUNCTION GetData(tcQuery as String) as string
LOCAL loHttp,loXML
loHTTP=CREATEOBJECT('Microsoft.XMLHTTP')
loHTTP.Open('GET','http://...',.F.)
loHTTP.Send()

* Directly get an XMLDOM object
loXML=loHTTP.ResponseXML

* Check for error
IF EMPTY(loXML.XML)
   RETURN loHTTP.ResponseBody
ENDIF

If I do this from the client, it'll work. When it is not an XML, I am receiving the error message ok. However, having the same code on a Web Service will make the returned string of loHTTP.ResponseBody to be encrypted. I have to do this to avoid that.

* Check for error
IF EMPTY(loXML.XML)
   RETURN ''+loHTTP.ResponseBody
ENDIF

Why is that?