This is an archive for some programs and games I programmed along the way, some over 20 years old. Mostly for "historical" reasons, I keep them available here. The programs on this page are all free, except for Jumbo Timer. I cannot guarantee that they work on the latest Windows versions or at all and there will be no more updates and no support. Please use them at your own responsability.

Abandoned Programs


Photo Browser is a free program to browse and view large image collections. Two windows: the resizable image (can be made full screen) and the file manager with quickly generated thumbnails. Handy batch processor with watermark tool, resizing and renaming.


Jumbo Timer can run as stopwatch, count down or alarm clock. Resizable windows with title bar, time display and info bar (optional). Alarms can be with or without a popup and can be silent or with an alarm sound. The timer windows can be cloned.
Trialware, you can buy a license here



Windows 10 universal game app, for both Windows desktop / tablet devices and for Windows smartphones. Improved version of the well-known 5-In-A-Row game, but more entertaining and a bit harder to play, with joker and bomb items to make it more interesting and challenging. Smooth animations and polished appearance.
Get it at the Microsoft Store


PacWorld 1.0 was released in 2000 - version 2.0 in 2020 and it is available as a Windows 10 app. With the original graphics from the year 2000, but enhanced, with faster gameplay and three difficulty levels, so it is fun to play for both kids and adults. Version 3.0 was released in 2023 and is also available as an Android app (search for "PacWorld" in the Google Game Store) or play it on this website or at
Get version 2.0 at the Microsoft Store

1001 (CARD GAME)

A very nice card game I used to play with my mom and my sister, when I was a kid. There used to be versions for the Palm Pilot (who does remember it?) and the iPad, but they are both no longer available. Here are the rules for 1000 and 1001


Move the mouse to the border of two adjacent bubbles and click - they change places and when two or more bubbles with the same color come together, they vanish slowly, making room for the next ones, falling from above. Try to remove all 128 bubbles!


A nice, addictive game in the Color Tetris / Dr. Mario style. Move four in a row with the same color to make them disappear. The screenshot shows one of my best results, played in level 5 without automatic increase. Don Crowder, a dear cyberfriend of mine, reached an incredible 71,586 points highscore!


Not only for kids! If you have a musical ear, play the random melodies on the virtual keyboard. Use the right mousebuttton to hear the note before pressing a wrong key, but try to do without it. False notes are marked with a worried smiley.


The well-known, simple board game for kids and adults alike. You need concentration and a good short-term memory to play it. There are 9 different themes (sets of pictures) to choose from.
I programmed a new version in Godot in 2024! You can play it online on this website or on


This little painting program is intended to teach small kids to handle the mouse and have fun with colors and shapes. Use 40 different colors and 10 different sized brushes or use the 15 available clipart pictures as stamps.


Enjoy beautiful mandala-style ornaments with this Kaleidoscope program. You can let the shapes rotate, draw only outlines, change the angle and create an "explode effect". It's amazing how many different scenes you can get from just 6 different shapes (square, rhombus, triangles, circle and star).



The program is designed to test your ear's capabilities to hear all frequencies of the audible spectrum, separately for each ear. The test result is drawn as a graphcal chart. The program is not calibrated and cannot replace a medical consultation. Please be careful while using headphones and do not turn up the volume too much.


This program is able to scroll any number of text items in a draggable and resizable window on your desktop, in a horizontal or vertical direction. Please notice the new Tele Prompter program, using WPF for hardware accelerated scrolling in larger windows.


With Multi Clipboard you have access to nine clipboard texts (slots), which you can select either via mouseclick when the program window is active, or via Hotkey "Ctrl + NUMPAD 1.. 9". This copies the selected slot to the Windows clipboard, from which you can paste it into your active application (for instance with Ctrl + V). The hotkey "Ctrl + NUMPAD 0" hides or shows the program window, depending on the previous state.


A special timer program, developed for speed reading training. Counts up or down, with customizable metronome tick (emphasized or not, variable speed), plus extra sound every x seconds (when you count up) or x seconds before timer runs off, and when timer has reached zero.


Simple and intuitively to use tool for conversion of the most frequently used units of Length, Weight, Volume, Area and Temperature in both U.S. and metric types. Enter any value and convert it to the desired result unit. Result can be copied to clipboard.


When you build homepages or any other kind of graphic artworks, a tool like this comes in handy. Mix any desired color with the three sliders. Press ENTER or click button to put colorstring into the clipboard. You can make the program window stay "always on top" by clicking the pin button.


A useful tool for creating passwords that nobody can guess. Use a mixture of upper/lowercase letters, numbers and a selection of user defined special characters. Generate up to 1000 passwords at a time and save them to a file.


Make up your own Quiz Show! Answer questions while picking the correct one among three or four available answers. The program comes with quite a lot of quiz files, which were kindly sent to me by several authors, but you can easily create your own! Text and background colors can be changed for every file. In the end you can review which questions you answered correctly and which you didn't.