Welcome to LSwitcher

The program adds new features to PM Alt-Tab switcher, expands the Alt-Tab switching capability to OS/2 and DOS full-screen sessions, and adds a convenient "Taskbar" to your PM Desktop. The package also includes an XWorkplace XCenter widget with the similar functionality.


The latest version available is version 2.91 (2019/10/23)


LSwitcher is open source software released under the GNU General Public License version 2.


  • Andrei Los - Original Author
  • Andy Willis
  • Gregg Young

We would like to thank the following people and projects for comments, suggestions, bug reports, and other feedback:

  • Doug Bissett (New installer)
  • Julian Buss
  • Alessandro Cantatore
  • Alexander Conon
  • "Doodle"
  • Ian Douglas
  • Don "Freiheit" Eitner
  • Tim Erickson
  • Alfredo Fernández Díaz
  • Javier Arias Fernandez
  • Klaus Fuchs
  • Michel Goyette
  • Cristiano Guadagnino
  • Tomas Hajny
  • Johann Harrieder
  • Martin Iturbide
  • Reb James
  • Andreas Ludwig
  • "Jiki"
  • John Martin
  • David Mediavilla
  • Nenad Milenkovic
  • Romulo Silva Neiva
  • Nick
  • Dmitry Novoseletsky
  • Sander Nyman
  • Konstantin Okounkov
  • Dariusz Piatkowski
  • Lech Wiktor Piotrowski
  • Henk Pol
  • Sergey Posokhov
  • Mike Reichel
  • Loris Rinaldo
  • Lewis Rosenthal
  • Antonio Manara Rossini
  • Danis Tazetdinov
  • Rich Walsh
  • Karel Wesseling
  • John Wibawa
  • Sebastian Wittmeier
  • Denis Zavorotny
  • Vladislav Zhuk
  • The XWorkplace project

Special thanks to the following people who provided translation of the README.TXT and program resources and thus made the existence of localized versions of this program possible:

  • Tomas Hajny -- Czech translation
  • Alfredo Fernández Díaz -- Spanish translation


You must be logged into TRAC to create tickets. Please login with your Netlabs login id. If you do not have a login id, you can request one at If you have troubles acquiring a Netlabs login id send an e-mail to

Netlabs Community Mailing List

If you want an email notification when a ticket is changed you need to go into your preferences and on the "General" page add your name and email. This needs to be done separately for each project.

Mailing Lists

There are currently two mailing lists for lSwitcher: one for users, and one for developers.

To subscribe to the developer list:

Send email to: lswitcher-dev-on AT 2rosenthals DOT com and reply to the confirmation email.

To subscribe to the user list:

Send email to: lswitcher-user-on AT 2rosenthals DOT com and reply to the confirmation email.

Web archives of lists are available here:


LSwitcher Alt+Tab menu LSwitcher taskbar

BUILD Instructions

Create lswitcher directory and change directory to it.
Pull code, svn co .
OpenWatcom? can be used to build lswitcher.
wmake -f makefile
VAC may still work but its build files have not been maintained. Try:
nmake -f makefile.vac

Last modified 4 weeks ago Last modified on Aug 26, 2020, 8:43:32 PM

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