If you're looking for a downloadable copy of the MaxScript Help for 2015 it can be found here:
3ds max 2015 Help
One of the new features of the 2015 online help is that all the help files are combined into one so if you search for something that you want to know more about for scripting purposes, you often get just the max general help for that topic. As if it wasn't hard enough in the old, separate MaxScript help to find the specific topic you wanted. It's especially difficult if you don't know the exact scripting phrase you're looking for (that's usually me).
Once you unzip the link from above, if you chose the .chm version (I still like that) you may find it doesn't display. Here are the instructions from the .zip to get Windows to "unblock" the file:
If your .CHM file does not load any help pages into the main content
panel, you may need to unblock it.
To unblock your .CHM file:
1. Find the file in Windows Explorer.
2. Right-click the file and select "Properties" from the contextual
3. On the General tab, click the "Unblock" button.
4. Re-open the file.
If the "Unblock" button does not appear, or if the file still does not
show any content:
- Ensure that there are no special characters anywhere in the path
and file name of the .CHM file. The # and . characters are known
to prevent CHM files from displaying correctly
- Ensure that you are not trying to open the file from a network
location or shared folder. Move it to a location on your computer.