Urgh. Bang path email addresses shouldn't be allowed to leak out into the Internet. Bo Zou <boz(a)cadabratech.com&gt; writes: The problem is basically that we have a package of uncertain lineage and no one knows why we need a data directory naming containing a colon but apparently we do. If someone can get me a backtrace on where psgml bombs if it doesn't have that directory, I can fix it. Cool. You're going to find building everything from source difficult to impossible on Microsoft Windows. XEmacs 20 was unbuildable from scratch for quite awhile without Mule support. I expect that getting everything building on Microsoft Windows to not take quite as long. In the meantime, you can always pick up pre-built pieces where native support is lacking. Prebuilt texinfo is always provided in a -info tarball, prebuilt Lisp packages will always be provided. The compiler warnings are being removed in fits and starts. The bytecompiler warnings can usually be ignored. Install the xemacs-*-info.tar.gz file.