calling cobol dll from ASP.net

Question

Hi There,

i've been trying to integrate my cobol program in web service (ASP.NET). I've tried to call it using <importDLL but it does not want to return a string value. is this something to do with calling convention? or data type issues?

I converted the cobol programs to dll files..

I know there is a sample in "http://www.dotnetheaven.com/uploadfile/rickmalek/vb2cobol01302006022323am/vb2cobol.aspx?login=true&user=Ronald_yoh" but i know nothing about the repository and stuff so when I compiled I got the error.. I;m using net express 3.1

any helps?

Thanks