Fix for .net 1.1 application written in C# and C++

We have an application that was written in Visual Studio 2003 and .net 1.1. We have a function in the application to send an email which links to mapi clients. This has always worked with Outlook 2003,2007 but Outlook 2010 does not work. We need someone with knowledge of C# and some knowledge of C++ to fix it. We know where the problem is occuring in the code but do not know how to fix.

We would also like someone close to Hinckley UK.