You should place the "temDM MSA.gtk" plugin into a PlugIns folder of DigitalMicrograph. There are typically
several such folders, for instance "C:ProgramData/Gatan/Plugins".
 
The script "find plugins folders.s" included in the distribution package will help you to localize desired
folders. Open "find plugins folders.s" in DigitalMicrograph and run it by pressing execute or by pressing
ENTER with holding the CNTR key. Read the list of available plugins folders. The first folder in the list is
most appropriated for placing the temDM plugins.

Some folders can be hidden in Windows.If you do not see all folders, make them visible in the Windows
explorer:
Windows 7: "Organize" tab - "Folders and search options" - "View" tab - click "show hidden files, folders and drivers checkbox".
Window 10: "View" tab - click "hidden items" checkbox.

In some network-based systems, find plugins folders.s could fail to localize the user-specific
DigitalMicrograph plugins folder. You might try to find them manually checking for the paths like
.../users/user/AppData/Local/VirtualStore/Program Files (x86)/Gatan/DigitalMicrograph/Plugins.

If import of Velox XEDS spectrum-images is desired, you should also place there an appropriated HDF5-reading plugin:
"hdf5_GMS2X_amd64.dll" for the 64-bit system,
"hdf5_GMS2X_x86.dll" for the 32-bit system.
 

If your system is 64-bit, drop "temDM MSA.gtk" and "hdf5_GMS2X_amd64.dll" into the chosen Plugins folder.
If your system is 32-bit, drop "temDM MSA.gtk" and "hdf5_GMS2X_x86.dll" into the chosen Plugins folder.

DO NOT place there both "hdf5_GMS2X_amd64.dll" and "hdf5_GMS2X_x86.dll" - your system will be confused.

Restart DigitalMicrograph and find the MSA items in the Menu "temDM : MSA".

If you are using the most recent versions of GMS (Gatan Microscopy Suite), you might get the warning
message "You have incompatible plugin hdf5_GMS2X_amd64.dll" during the start of DigitalMicrograph. 
That is because this dll was compiled for the older versions of GMS. In fact, the plugin works with
any version. This message is just over-security and you can safely ignore it. Alternatively you can get rid
of this boring message by removing hdf5_GMS2X_amd64.dll from the plugin folder. However you then would not
be able to import Velox spectrum-images. The problem with the warning message will be fixed in the nearest future.

In case you are installing the advanced version, the program will request you to input your individual installation 
code during the first start of DigitalMicrograph. You have to do it only once for a given PC.

To update the version, just overwrite the "temDM MSA.gtk" plugin of a previous version in the Plugins folder. 
All versions of temDM MSA have the same name to avoid confusion with loading ambiguous commands. 
If you have several versions, it is recommended to keep PlugIns in individual folders with meaningful names like
"temDM MSA basic version 2_00".