Thank you for this version... it shows you the errors returned by the SSIS package. Using this I was able to figure out what was causing my problem.
The answer is a bit anti-climatic, but I'll detail it here for others benefit. My SSIS package uses an ODBC connection - the ODBC connection was a User DSN, and when VisualCron calls the SSIS package it runs it under another user space, one without my User DSN. I was able to solve the problem by removing my User DSN and creating a System DSN.
I would have expected that I could have run my SSIS package with my credentials, thinking it would run in my user space, but, that did not solve the problem.
Also, after I installed this version I had some problems with it... first, it tried to tell me that my 45 day evaluation period had expired, but it has not yet. And second, we have more than one server with VisualCron (we're planning on getting a site license) and the two servers can not be managed by the same clients. Is there any reason I shouldn't upgrade my other server to this version? I have 4.9.11 on the other server, and this one is the new version, 4.9.18. Is 4.9.18 publically available? (Well, I guess it is now, via this forum.) It seems to include some pretty major changes.
Thank you for your time.
Chris