Step 8: Using 7-Zip: Reassembling the Split Archives.
Unlike WinRAR, you first need to to copy all the archives, onto your hard disk, in the same location, as in a folder .Make sure that they all ARE oin the same folder, else this will not work. Once you've got all the archives onto your hard disk, double click on the first archive (in my case it was trial.001). Windows does not recognize this format, and asks you to select a program. Select 7-Zip file Manager. in case it is not there on the list of programs, browse for it in the directory or folder in which you instaled 7-Zip. Choose 7-Zip File Manager, and press ok.
Your job is done, since you already copied all the archives to a location, you will not need to change discs, thats already done. After you've reassembled your file, you may delete the archives from your hard disc, as you no longer need them.
I recommend this way for splitting your files, if you are looking for an economic version. The only only glitch in this way is that you need to first copy all the archives onto your hard disc, and then select 7-Zip file manager to read them. But that's not much of an issue. So if you're gonna use this mehod, its not gonna burn a hole in your pocket, since both other sofwares need to be purchased. Also, this is a light download, and the installer can easily fit in with it occupying less than 1MiB of memory. So if you are looking for economy, this is the option for you!!