this code when written in a simple console application and when this
function is called, it is getting executed perfectly with variable number of
arguments.

But, when am using the same code in "connect.cs" of the excel addin project,
and invoking this function from MS Excel(2003) as '=addme(10,20)' or
'=addme(10,20,30)' it is not giving any result, it is simply showing a
"#VALUE!"

thanks in advance... any help is considered very thankful..