Since my earlier troubles, things have progressed rather nicely. I managed to install Visual Studio 2003 on the x64 machine, and a 64 bit compiler that came with the Platform SDK. I could have compiled my first 64 bit executable today, but I need to find out if any of the libraries I use are ported. I’ll need boost, libxml2, iconv, lua and luabind. Yeah, fat chance.
OpenOffice is still being difficult. Writer is the only part I can make work, and it doesn’t seem to be the dual-coreness of the machine that’s the problem – setting affinity to only one CPU made no difference.
Something positive: Miranda IM works nicely (as a 32 bit app), there is a 64 bit Java VM and 64 bit Python from ActiveState.
What this platform really needs though is a few machines in the Sourceforge compile farm and 64 bit MinGW.