Anyone who is using the Chilkat Email component will realize that it does not work in a brand new server with a 64-bit OS, without the C++ runtime library insalled. The Chilkat component is built using generic C++ code, so by just installing .NET FW is not good enough.
The C++ runtime can be downloaded from the following Microsoft web site.
http://www.microsoft.com/download/en/details.aspx?id=5555