Hi there!
I have interesting situation where I can only use portable versions of LibreOffice and JabRef for Windows on the job. My PC is administrator locked, and the policy in my company is only using proprietary software from several vendors. However, from my academic background I have used to linux and LaTeX for twenty so years.
My problem:
I have concluded that JRef uses soffice.exe as starting point, however LO portable have LibreOfficeportable.exe, so I have renamed, duplicated it with soffice name. Then, he complained about soffice.ini file, no problem, just like previous I have found and renamed it. Then came a real problem, JabRef complains that another instance of LibreOffice is running, which is true, because you should run the document and then connect referencing software.
I found it not so simple to get resolved by myself, it requires some hack of come conf file, or something, or updating the source. Can you solve this? Thanks, cheers