Texmod: any alternatives?

I just found out about Texmod, an application that can change textures in any DirectX9 application. You open the app with Texmod, scroll through the loaded textures, “log” one, edit it, make a “package”, and then run the app with the package. I realized, however, that by running the app through Texmod, there is no way to run the app with command line arguments. Does anyone know how to either do this, know about a similar app, or know of any way to do this with models instead?