Please help with Web Services

[Mark]

I am creating a cgi win executable using the SOAP Server Wizard in
Delphi Code Gear 2007.

I run through the wizard and add a datamodule.

I deploy the .exe to iis 7.0 virtual directory (web site) on a vista
machine and get the following error when trying to access the
executable in the browser.:

"HTTP Error 502.2 - Bad Gateway
Description: The specified CGI application did not return a complete
set of HTTP headers.

Error Code: 0xc0000005

Notification: ExecuteRequestHandler

Module: CgiModule

Requested URL: http://localhost/BHFServer.exe

Physical Path: C:\inetpub\wwwroot\BHFServer.exe

Logon User: Anonymous

Logon Method: Anonymous

Handler: CGI-exe

Most likely causes:

The CGI process was shut down or terminated unexpectedly before it
finished processing the request.
The CGI process has a flaw and does not return a complete set of HTTP
headers.
What you can try:

Check the event logs on the system to see whether the CGI process is
shutting down unexpectedly.
Troubleshoot the CGI application to determine why it is not sending a
complete set of HTTP headers.
More Information... This error occurs when the CGI process handling
the request exits before it finishes sending the response to IIS. "

This is anoying because when i do exactly the same to another machine
running iis 6 i get the correct response as shown below:

BHFServer - Service Info Page

BHFServer - PortTypes:

IBHFTest [WSDL]
echoEnum
echoDoubleArray
echoMyEmployee
echoDouble

IWSDLPublish [WSDL] Lists all the PortTypes published by this
Service

GetPortTypeList
GetWSDLForPortType
GetTypeSystemsList
GetXSDForTypeSystem

WSIL: Link to WS-Inspection document of Services here

Can someone tell me how to get this application working with iis7
please

I can see lots of people with similar error on the web but no
resolution

Thanks in advance

Mark