grepWin Portable 1.6.3 has been released. grepWin is a simple search and replace tool which can use regular expressions to do its job. This allows to do much more powerful searches and replaces. This release adds German support and automated 32-bit / 64-bit switching for maximum performance. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. And it's open source and completely free.