Use tar zcf archiveorg.dlm INFO search.php to compress file into one correctly named file.
The indentation are important in the INFO file, any deviation will cause the file to be rejected.
The DLM guide is taken from https://global.download.synology.com/download/Document/Software/DeveloperGuide/Package/DownloadStation/All/enu/DLM_Guide.pdf on 02/11/24 but it's included here just incase it is removed from source. It's unlikely it will be updated, but its worth looking for an updated version if needed.
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V1.0 : First working release
v1.1 : Limited results to 5000 by adding &rows=5000 to the search string