I put my Web Spider code onto my x64 system. Everything is
managed code. I was able to just start running the code.
The lesson seems to be that if you right 100% managed code,
your code will run, your code has a pretty good change of
running in 32 bits or 64 bits. I always hate to say something
will run a 100% of the time, but my guess is that it has a
good chance of running. Perhaps someone from MS can post a
comment about the pitfalls of 32 vs. 64 bits in .NET 2.0.