I have a dll compiled from VFP which I need to access from my ASP.NET web
application build using VS .NET 2003. Everything work fine on Windows XP
(dev) machines but when I deploy the solution to a 2003 Server I get errors
calling the methods of the VFP class.

I can create an instance of the object, code in the Init event fires, but
when I call the method I get a NullReferenceException.

I've included sample code which reproduces the error.

Create a VFP project named vfptest
Add a new program and add the code between the '--'s.
Compile to DLL.
--
DEFINE CLASS FoxProTest as Custom OLEPUBLIC

FUNCTION Init
STRTOFILE( "Test", "InitTest.txt" )
ENDFUNC

FUNCTION AboutMe AS String
STRTOFILE( "Test", "AboutMe.txt" )
RETURN "Hello My Name is Test"
ENDFUNC

ENDDEFINE
--

Creat a VB .NET application project.
Add a reference to the vfptest.dll created above
Add a button to the form and place the code between the '--'s in the click
event.
--
Dim vfpObj As vfptest.FoxProTest = New vfptest.FoxProTest
Dim retVal As Object = vfpObj.AboutMe
--

Run and debug on a Windows 2003 server.

I would much appreciate your help
Neil Riding
The Guthrie Phillips Group Inc.

Additional the error only occurs in Windows 2003 Server SP2. I have tested in
on an unpatched machine and under SP1 and both worked fine.

"GPG" wrote: