>Hi...
>
>Im facing to a necessity to connect with a HandKey (biometric hand reader)... They suply a dotNet Dll...
>

.NET DLL's are not the same as a standard "c" DLL so they're not callable from VFP this way. Some .NET DLLs have been compiled to expose a COM interface - you would need to check the docs to see if that's the case (if so it would use the normal VFP syntax of o = CREATEOBJECT("Something.Something")) where "something.Something" is the name of the COM object.

You could write a COM wrapper in .NET if they don't have one available or you could use something like wwDotNetBridge from West Wind (part of his West Wind Internet & Client Tools) which will let you call a .NET component from within VFP. Or .NET Extender for VFP from eTecnologia which does the same.