So your requirement is to get it to work on a 64-bit IIS machine rather than actually building it to 64-bit.

Please see here :

http://www.microsoft.com/technet/pro....mspx?mfr=true

or

http://blogs.msdn.com/b/rakkimk/arch...processes.aspx

Or google "iis running 32-bit on 64-bit"

Darwen.