I created a DLL with a few VB functions. It does build correctly and the
calling program loads the DLL but cannot find the functions. Checking the
DLL I found that it does not export any functions.
I searched the documentation for instructions but couldn't find a hint or a
sample.

Thanks for any help.

Kurt

Do you mean "Exported" like a "C" DLL? If so, .NET cannot do this.

If you mean just exposed so that other applications can call them through
either a Class instance of Public Module then you need to make sure that
both the Class/Module and the Functions/Sub are declared "Public"

Hope this helps?

Cal

.NET actually can do this, however it produces
unverifyable code, therefore isn't permitted by the VB.NET
or C# compilers.  Managed C++ can do it, and it is
performed without any need for x86 code.  If you wanted
to, you could compile your program with VB.NET, ildasm it,
add the necessary IL, and then ilasm it.

The following shows how .NET exports a function:

The following is put in the assembly:

.data D_00004000 = bytearray (01 00 00 06)
.vtfixup [1] int32 fromunmanaged at D_00004000 // 06000001

The following is put in the method you want to export:

.vtentry 1 : 1
.export [1] as Multiply

I have attached the full IL of a .NET library that exports
a function for educational purposes.  It can be compiled
using the following syntax:

ilasm TestExport.il /DLL

This assembly offers the function as both an exported
function and as a normal static .NET method.

Cal