关于asp和access数据库的连接问题

<%
userid=Request("username")
password=Request("userpass")
set conn=Server.CreateObject("ADODB.connection")
connstr="driver={microsoft access driver (*.mdb)};dbq="&server.mappath("person.mdb")
conn.open connstr
execstr="insert into info("用户名","密码") values(userid,password)"
conn.execute execstr
conn.close()
response.redirect("success.htm")
%>

这段和数据库连接的代码哪里错了，