Here’s a great bit of information from a Chilkat customer (with permission):
I found out what the problem was, even though it’s taken most of the day! Basically VS2005 doesn’t install the x64 compilers by default. However, it will still try and compile to x64, it just doesn’t report that the compiler isn’t present! Aarrgh! I feel so foolish right now. When you click “Install everything” you kind’a expect them to install the lot, not miss out important things like entire architecture compilers!
Many, many thanks for your patience. This little diamond should probably go into your response list… “Have you checked you have the x64 compiler installed?”
As a quick note you have to do the following (It’s pretty buried!) :
Control panel > Add Remove programs
Scroll down to Visual studio and click Change/Remove
Click “Add Remove Features”
Under language tools go into Visual C++ and tick the “Install X64 Compilers and Tools”