I have multiple images with points on them that I need to measure (e.g. there are 10 points per image, and I need to know the distances between each point and the other 9 points, so 9 measurements for each point, 90 measurements per image). Is there a way to get mapwindowgis to do this for me? I can use the measure tool to get the numbers one at a time, but that is very tedious. Is there some way to assign a spacial reference to the images (JPEG) then use shapefiles to put a point over each point on the image and calculate the distances between each point? Or if you know some other way to do it thats fine as well. I'm pretty new to mapwindowgis so the more detailed the explanation the better.
thanks!

Using the image tools made by Gerd you can assign a spatial reference (world file) to your image.
Next you can use the Shapefile editor to create a new point shapefile and add your 10 points.

Now comes the tricky part. You need to write a script that will calculate the distance between each point and write it to a text file or as an attribute in your shapefile.
This script can be made and run in the script editor (Plugins->Scripts).

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If you don't want to write tedious script. There is another way by loading your Shapefile to SpatiaLite DB using DataClient Plug-in. Then, use SQL command to query them.

Poom