Starting emacs 24.3.1 with -Q, sql.el version: 3.4 1. Set sql-postgres-program to psql from cygwin: (setq sql-postgres-program "c:/cygwin/bin/psql.exe") 2. Run sql-postgres 3. At prompts, enter user (postgres), database (postgres), server (localhost). 4. Wait for sql-delay seconds. Login...done. Buffer is *SQL* (SQLi[Postgres]:run). Prompt for password still not seen. This is the problem. psql prompt not seen. 5. in that buffer yields Password for user postgres: psql: fe_sendauth: no password supplied and buffer's process dies. However, repeating steps 2 through 4, doing send-invisible and entering the password, the process remains and accepts input and produces psql output (still no psql prompt, though). This does not work with Windows psql.exe. This also occurs in emacs-24-20140526-154828-w32-bin where sql.el 3.4 is the default version. In GNU Emacs 24.3.1 (i386-mingw-nt5.1.2600) of 2013-03-17 on MARVIN Windowing system distributor `Microsoft Corp.', version 5.1.2600 Configured using: `configure --with-gcc (4.7) --cflags -ID:/devel/emacs/libs/libXpm-3.5.8/include -ID:/devel/emacs/libs/libXpm-3.5.8/src -ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include -ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include -ID:/devel/emacs/libs/giflib-4.1.4-1/include -ID:/devel/emacs/libs/jpeg-6b-4/include -ID:/devel/emacs/libs/tiff-3.8.2-1/include -ID:/devel/emacs/libs/gnutls-3.0.9/include -ID:/devel/emacs/libs/libiconv-1.13.1-1-dev/include -ID:/devel/emacs/libs/libxml2-2.7.8/include/libxml2' Important settings: value of $EMACSDATA: C:/emacs-24.3/etc value of $EMACSDOC: C:/emacs-24.3/etc value of $EMACSLOADPATH: C:/emacs-24.3/site-lisp;C:/emacs-24.3/../site-lisp;C:/emacs-24.3/lisp;C:/emacs-24.3/leim value of $EMACSPATH: C:/emacs-24.3/bin value of $LANG: ENU locale-coding-system: cp1252 default enable-multibyte-characters: t Major mode: Lisp Interaction Minor modes in effect: tooltip-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: x r e p o r t SPC e m a c s SPC b SPC Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Load-path shadows: c:/emacs-24.3/site-lisp/sql hides c:/emacs-24.3/lisp/progmodes/sql Features: (shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel dos-w32 ls-lisp w32-common-fns disp-table w32-win w32-vars tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process w32 multi-tty emacs)