Combining multipart files using 7-zip
From Nexus Wiki
This is a tutorial that explains and shows how to combine those multi-part files back into a DAZIP that are greater than 300MB. I used to be intimidated by trying to figure this out and passed by some great mods due to me thinking they were too complicated to install.
This is how to do it for v1.42 but it works the same for any version. 7-zip -Link
Download all the parts of the mod to one folder. In the example I am using, it is only a 2 part download and I created the folder "combine test" to put them in.
After both files (or however many the mod is split into) are downloaded and in your temp folder you created, right click on the first part and select "extract here" as shown in screen shot 1.
It will look like this once the first part is extracted out of the zip file SS2:
Repeat that as many times as there are parts:SS3 and SS4
Open up your 7-Zip file manager and navigate to the folder you just extracted the multipart files. (the ones that end in .001, .002, ect. if needed) Right click on the file that ends in .001 as that is part one and choose "combine". This doesn't mean right click on the .001 file where you unzipped it. You have to separately open up your 7-Zip file manager found by clicking Windows start, all programs, 7-Zip, 7-Zip file manager :SS5 and SS6
Now you should see the DAZIP in your 7-zip file manager:
Close out your 7-zip file manager and you will see that the DAZIP is in your original temp folder and is ready to install:
Play and enjoy!