Active-DVI is a DVI previewer and a programmable presenter for slides written in LaTeX. The previewer features color anti-aliasing, inclusion of images with alpha channel and blending, encapsulated Postscript file inclusion, Gpic specials to display pictures, correct treatment of many inlined-Postscript specials, page background settings, and Japanese pTeX DVI extension support. To present your DVI files, it features basic effects for presentation (pause, delay, dynamic text color change), annotations displayed on demand (similar to pop-up balloons), hyperlinks from slide to slide or to other files, replay of previously recorded parts of the display, text movements, page transitions, embedded applications, and scratching on slide to interactively modify the text on screen. Its special effects are set and launched from within your LaTeX source file via the macros of the advi.sty LaTeX package provided by the distribution. In addition, Caml hackers can program new and fancy Active-DVI effects in the source code of the presenter.