The 64-bit editions (x64 and IA64) of Microsoft Visual J# 2.0 Redistributable Package – Second Edition enable users to take full advantage of the 64-bit .NET Framework (v2.0 and v3.0) and the underlying 64-bit hardware platform without having to deal with differences between the 32-bit and 64-bit hardware platforms. To know more about the differences on the two platforms see the whitepaper