Messing about a bit with image modding, and I found that you need to keep the BMP3 underlying format for it to work with the game. ImageMagick 'magick' and 'mogrify' can do this with thes args:

This matches my wishlist so far almost exactly. Making the info dialogs non-modal, especially the Message Log, Jump Map and Unit Finder are top QoL improvements.

There is also a XML tool in the SDK, "SDK\SowScenarioEditor\OOBToNames.exe" It merges changes to an OOB csv into an XML file, and can also update an OOB from XML.

<r> Sandbox is already available in multiplayer.<br/>
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I believe you will need to purchase two copies of the game if you wish to run it on two computers <B><s>[b]</s>(at the same time in MP*)<e>[/b]</e></B>. That said, I think it is worthwhile, I purchased two copies of Gettysburg so I could ...

ok. thanks for the quick response.

is there an command line option flag to run httr in a window rather than full screen?
thanks

Use httr.exe instead of start.exe. example below, obviously your drive and path might be different.
"G:\Matrix Games\Highway to the Reich\HTTR.exe" /resolution 1280x1024