linking DB using DLL on ASP

I created a SQL server database, and I try to use vb to create a dll file to open the database. and then I want to call that DLL file from an ASP so I can output the table on the web page.
but I always got this error message:

"Object variable or With block variable not set"

please help me, I have been working on this for a very long time, and it's driving me crazy.

this error happens when I try to call the function.
ASP code:
'<%
set t=server.createobject("dbt.table")
response.write t.getRS
'%> ^^^^^

please help me.

Thanks

Cerebrate@