Using Astrogrep from the CMD

Does anyone who how to use Astrogrep in a batch file?
Or a similar command I can use with windows (not linux so I can use Grep)

I'm trying to make an auto auto updater for the clients, but I am having trouble finding
a way to search in directories for certain strings like Astrogrep does. There is a VB.net
command built in to Visual Studios the program I'm using, but I dont know how it to search directories rather than
just certain files

The idea is that I will find familiar strings like I do when updating regardless to find which file to modify. Then
search within the file to modify for more familiar strings to find the new code location. I could do this for most
of the hacks. I already have the sequential search order that will word from build to build (typically) for full screen
and Production client.