this is an idea and a fix combo...
it seems that running the vault job processor & working in inventor / vault at the same time on the same machine can sometimes cause a more severe affect when inventor crashes. (& often this will cause broken vault add-ins)
can we have a review of the process that is used for the job processor, or improve the utility so that is does not use the inventor process.
could i suggest that perhaps in the interum that it may be possible to program the job processor to detect that if inventor is started, the job processor should pause and warn the user that the two should not be run at the same time.