im also facing the same problem...when i use [ProgramFiles64Folder], it defaults to programfiles(x86) folder on target 64bit machine. couldn't help, tried every possibility but in vain. And this support for this product is also not upto the mark :m...
I've tried this option but fails with "error 1324: the path .. contains invalid character". I've used ..\ in [INSTALLDIR].any help would be appreciated.