I'm having really good luck with the BRC command line utility but I could use a bit of assistance if someone has any advice to give.
Here's my command:
brc32 /pattern:"lbqx.zip" /appenddate:N:S:::10:%m%y /execute
It renames a single ZIP file with the month and year. I need to do the same thing but one month prior. In this case it appends 0610 to the end of the file. I would like to append 0510 instead. Basically month -1.