@SASSBS: Most likely your firewall/anti virus software is blocking calibre 64 bit. As far as windows is concerned it is a completely different program and you may have to add permissions for it separately to calibre 32 bit.
Notice to all: I can not
provide assistance with DRM removal, for legal reasons, so please do not contact me about it.
Last edited by kovidgoyal; 12-07-2012 at 12:36 PM.