Like any other Symbian OS application, m is installed from a .sis (Symbian Installation System) file.
Get the most recent version of the installation file for your device. You can always download the most recent files from www.m-shell.net, the official m website, together with accompanying documentation. For Windows®, there are complete installers. For other operating systems, download the .zip file.
Currently, there are four supported device types. For the two Symbian 2nd Edition device types, there are just two installation files:
| S60 2nd edition | mShell-S60-2nd.sis |
| UIQ2 | mShell-UIQ2.sis |
For Symbian 3rd/5th Edition devices (Symbian 9 and higher), there are three variants due to platform security:
| Self signed | Online signable | DevCert signable | |
| S60 3rd | mShell-S60-3rd.sis | mEnvironment-S60-3rd-OS.sis, | mEnvironment-S60-3rd-DC.sis, |
| mShell-S60-3rd-OS.sis | mShell-S60-3rd-DC.sis | ||
| S60 5th | mShell-S60-5th.sis | mEnvironment-S60-5th-OS.sis, | mEnvironment-S60-5th-DC.sis, |
| mShell-S60-5th-OS.sis | mShell-S60-5th-DC.sis | ||
| UIQ3 | mShell-UIQ3.sis | mEnvironment-UIQ3-OS.sis, | mEnvironment-UIQ3-DC.sis, |
| mShell-UIQ3-OS.sis | mShell-UIQ3-DC.sis | ||
The three variants are (see also * (Reference) for details):