Add a compile option for using devenv on emacs.

dev-studio-build.el

(defun is-devstudio-solution (filename)
  (or 
   (null (file-name-extension filename))
   (string= (file-name-extension filename) "sln")))

(read-file-name "Solution: " nil nil t nil 'is-devstudio-solution) 

(defun extract-projects (sln-file)
  (save-excursion
    (with-temp-buffer
      (insert-file sln-file)
      (goto-char (point-min))
      (let ((result nil)
            (index 0))
        (while
            (re-search-forward
             "Project("{[-A-Z0-9]+}")[ ]+=[ ]+"([A-Za-z0-9_]+) "[ ]*,[ ]+"([A-Za-z0-9_.]+)""
             (point-max)
         t) 
    (add-to-list 'result (cons (match-string-no-properties 1) (match-string-no-properties 2))))
    result))))

(defun dev-studio-build ()
  (interactive)
  (let*
      ((solution-name
        (read-file-name "Solution: " nil nil t))
       (projects
        (extract-projects solution-name))
       (action
        (completing-read "Action: " '(("Build" . 0) ("Clean" . 1) ("Run" . 2) ("RunExit" . 3))
                         nil t "Build"))
       (configuration
        (completing-read "Configuration: " '(("Debug" . 0) ("Release" . 1) ("Hybrid" . 2))
                         nil t "Debug"))
       (platform
        (completing-read "Platform: " '(("Win32" .0) ("x86" . 1))
                         nil t "Win32"))
       (project
        (completing-read "Project " projects
                         nil t (caar projects))))
    (compile
     (concat "Devenv "" solution-name "" /" action " ""  (concat configuration "|" platform) "" /project "" (cdr (assoc project projects)) """))))