Finding and using file date in batch command

Hello,
(I posted this question to the wrong category (Windows) so I'm re-posting here.)

I am trying to write what I hoped could be a simple batch program with XP command line tools. I want to find the date of a specific file, then if the date of that file is the same as the current date, the batch process would start a program. I have not been having luck. What commands do I need to use to do this?

Thanks in advance.