COM Interop Types

I've got to make some classes in my .NET assembly COM-Callable for use in an
old VB6 application.
The assembly is written in C# and I've had pretty good success so far in
making the step towards conversion.
However, I've run into a particular problem:  I have a property on an
interface that get/sets a System.Decimal type.  But when I try to set it in
VB6 it complains about the data type.  The error message is:  "Function or
interface marked as restricted, or the function uses an Automation type not
supported in Visual Basic."

Do any of you know what I can do to fix it so that it is a supported type?
I know you can put [returns: XXXXXXXX] as an attribute but I'm not sure what
to put there and I'm having a hard time finding any information.

Any help would be appreciated.

Thanks.

===================================
View archives and manage your subscription(s) at http://peach.ease.lsoft.com/archives