There are a number of converters out there. The online ones have some
limitations and will not convert entire projects, or newer syntax (and are
only minimally supported). The commerical ones (ours included) have
demo/trial versions).
Try some out.
-- http://www.tangiblesoftwaresolutions.com
C++ to C#
C++ to VB
C++ to Java
VB & C# to Java
Java to VB & C#
Instant C#: VB to C#
Instant VB: C# to VB
Instant C++: VB, C#, or Java to C++/CLI
