A portable application can be run from a removable drive (USB flash drive, iPod, portable hard drive, etc) on any Windows computer without installation.
You will carry the program with settings on removable drive and don't modify settings on host computer.
On Vista and above turn off User Account Control (UAC) or run launcher as admin.

Cloud-based messaging app with a focus on security and speed without installation.
Download Portable Telegram latest 32-64 bit Online (0.5 MB) 26/03/25
Extract and run TelegramPortable.
Don't forget to close in systray when leaving.
Settings of installed Telegram should be preserved.
Multi-Users: edit TelegramPortable.ini with User=NameOfNewUser (default is Telegram)
Libellés : Internet

Powerful and Intuitive Photo Viewer, Editor and Batch Converter without installation.
Download Portable FSViewer Multiversion Online (0.4 MB) 13/11/13
In first screen enter: 81
Extract and run FSViewerPortable.
Settings of installed FSViewer should be preserved.
Libellés : Graphic

Fast and free Web browser without installation.
Download Portable Opera 32-64 bit Online (0.5 MB) 14/08/17
In first screen enter: 120.0.5543.128 or 58.0.3135.132
Download Portable Opera Beta 32-64 bit Online (0.5 MB) 21/12/16
In first screen enter: 121.0.5600.3
Download Portable Opera Developer 32-64 bit Online (0.5 MB) 14/05/16
In first screen enter: 122.0.5608.0
Download Portable Opera GX 32-64 bit Online (1 MB) 26/06/25
In first screen enter: 120.0.5543.127
Download Portable Opera Crypto 64 bit Online (0.5 MB) 09/11/22
In first screen enter: 108.0.5067.28
For XP or Vista Download Portable Opera XP Vista Online (0.5 MB) 22/08/16
In first screen enter: 36.0.2130.80
Download Portable Opera 12 32-64 bit Online (0.5 MB) 25/10/13
In first screen enter: 1218
Download Portable Opera Neon Online (0.5 MB) 28/02/18
Download Portable Opera Mail Online (0.5 MB) 02/07/13
In first screen enter: 1.0-1044
OperaPassView Recover the passwords stored in Opera 12 Web browser.
Download Portable OperaPassView latest Online (0.5 MB) 13/07/13
Extract and run OperaChromePortable or OperaBetaPortable or OperaDeveloperPortable or OperaCryptoDeveloperPortable or OperaGXPortable or OperaPortable or OperaNeonPortable (each have their own profile) or OperaMailPortable.
Libellés : Internet