By default, most Windows programs install themselves in a folder called c:\program files\<company name>\<program name>. A-Shell, by contrast, installs itself in the folder c:\vm\miame, although this can be changed by the user at the time of installation. If you need or want to change the installation directory, you can do so without penalty or complication. However, A-Shell uses its unconventional installation directory tree for historical and functional reasons, and you should make sure you know what you're doing before changing the installation folder. This is especially true if other people or computers are involved in your A-Shell environment.

A-Shell does not use the Windows registry to record its settings or location or anything else. All configuration information for A-Shell is contained in A-Shell's configuration files, so you don't need to be concerned about changing values in the registry when you move, backup, delete or reinstall A-Shell. Note to ATE users: this is not true for ATE—i.e., ATE does make registry entries; use appropriate caution.

A-Shell may be installed multiple times on a PC. If it is installed in different folders, and you can keep the start-up icons and commands separate, then different versions of A-Shell can exist and run on the PC without problem. If you install a new version over the top of an old one (i.e., into the directory where A-Shell already exists), then obviously the old program files will be overwritten with the new ones. Note, however, than none of the configuration files will be overwritten, and all of your previous settings and values—including anything written onto A-Shell disks and other devices— will be preserved.