After upgrade Oracle AS to run Webutil, Reports no longer found

Question

Recently we update de configuration of Application Server to use the WebUtil features (FileTransfer, etc) but some clients can not view the reports (the PDF files generated and the previous html page where are passed de parameters to generate de PDF file paramform=yes <--- I mean this parameteter passed to RUN_REPORT_OBJECT_PROC )
The curious thing is that in NetScape it Works fine, but in MS Internet Explorer does not.
Initially we thought that was the problem, a configuration in the client, but after formatting the PC, the problem persists.
In the webutils log (after enable this capabilitiy) does not show anything abnormal:
192.168.0.244:desarrollo: 2006-sep-27 12:19:46.967 WUT[setProperty()] Setting property WUC_SRV_LOGGING to 2
192.168.0.244:desarrollo: 2006-sep-27 12:19:46.967 WUT[setProperty()] Setting property WUC_GET_LOCAL_PROPERTY to syslib.jacob.dll
192.168.0.244:desarrollo: 2006-sep-27 12:19:46.967 WUT[getProperty()] Getting property WUC_GET_LOCAL_PROPERTY
192.168.0.244:desarrollo: 2006-sep-27 12:19:46.967 WUT[loadSettings()] Local properties file loaded
192.168.0.244:desarrollo: 2006-sep-27 12:19:47.248 WUT[setProperty()] Setting property WUC_GET_LOCAL_PROPERTY to syslib.JNIsharedstubs.dll
192.168.0.244:desarrollo: 2006-sep-27 12:19:47.248 WUT[getProperty()] Getting
In a similar topic we read that it could be a problem with the reports classpath, but why webutils configuration works in some clients and with others does not?
In the RUN_REPORT_OBJECT_PROC function instead using relative address for the reports servlet we changed for a complete adress, I mean
RUN_REPORT_OBJECT_PROC(repid,
'/reports/rwservlet')
replaced with:
RUN_REPORT_OBJECT_PROC(repid,
'http://ias.website/reports/rwservlet')
But the problem persists (we have the reports and forms services in the same server)
and after debugging the RUN_REPORT_OBJECT_PROC function, in this line
rep_status := report_object_status(report_message);               
report_object_status returns null
Why happends this?
Could you help us? What information need to be posted to this? what else we need to do?
We configured webutils as mentioned in this document: Oracle® Forms Developer
WebUtil User’s Guide
Release 1.0.6
We're using MS Windows 2003 Server, Oracle AS 10g and Oracle DB 10g
The RUN_REPORT_OBJECT_PROC function (procedure) is the same what is mentioned in
http://www.oracle.com/technology/products/forms/pdf/10g/frmrepparamform.pdf

Answer 1

We added the following lines to webutiljini.htm
For IE
<PARAM NAME="BROWSER" VALUE="InternetExplorer">
<PARAM NAME="MAYSCRIPT" VALUE="TRUE">
For NetScape:
BROWSER="Netscape"
MAYSCRIPT="true"
And adding the frmwebutil.jar to the Reports Server ClassPath the problem was solved