Originally Posted by Nothingness
How does one copy 32 bits portable library, settings, plugins, etc. to 64 bits?
Calibre Portable is 32bit and it keeps everything
in the directory into which its 'installed'
Kovid Goyal in Post 7 in this thread wrote
Originally Posted by kovidgoyal
I'm not going to make a portable 64 bit version, 32-bits are portable, 64-bits are not. There are still lots of 32-bit windows systems around. You might be able to get it to work by manually replacing the contents of the Calibre folder in your 32 bit calibre portable directory with the contents of the the Calibre2 folder from a 64-bit calibre install.