Backing up CST MWS simulations

Hi all,
I have about 40 CST MWS simulations on my hard dosk. I want to backup. I have narrowed down on *.mod, *.bas and *.par files. I don't know what other files are critical. Can you please guide me ?
-svarun

Use: Macros / File / Make Archive
And if you don't want to backup the files from MWS, just use the macro once and you will see which files that are critical.

Hi svarun
If you don't need the results (Macros / File / Make Archive) and you need only the structure you can save only the mod and par files. They hold the entire project
PL

Hi Plasma,
I do not need the results. I am backing up only the mod and par files. The big question is how do I reproduce the directory structure ? They are so many levels deep ? Any idea how I can do it ( Sorry folks we are digressing a bit but I hope it will help many guys ). Yoo you know if you can make XCOPY do this ?
-svarun