OK, I downloaded, installed and ran ProcDump using the listed commands. For some reason, it was only able to get 9 dumps, as the 10th failed to write due to an error message about a device attached to the computer having failed or stopped working - although I can't see any evidence of a problem.
Zip file of the 9 dumps it did get uploaded to FTP with the filename AvastUI.exe_180807_152731.zip.