Web Forms :: Convert Asp Site For Russian Language

We are migrating a project from ASP to ASP.NET. This is a multilingual project. We have to make our website supportable for Russia. Our middle tier is in classic Visual basic COM+ components and we are doing incremental migration (one by one converting from asp to asp.net), so to make it work (asp and asp.net )we are using IFrames instead of master pages. We have the below two options / scenario's

Scenario1: -
ASP.NET ==> RCW ==> Visual Basic COM+ ==>
Data base

In the above scenario to get the multilingual characters to work we are changing "adVarChar" data types in middle tier of Visual basic to "adVarWChar" and in database we are changing varchar data types to nvarchar and char to nchar. In UI in asp.net in the page directive we put

<%
@
Page
Language="C#"
ResponseEncoding="utf-8"
&nbsp;

In web.config we are doing below thing.

<
globalization
fileEncoding="utf-8"
requestEncoding="utf-8"
responseEncoding="iso-8859-1"
/>
&nbsp;.................