If you have a Mac, check out this page.

Steps to Install NetDocuments on a Windows Computer

Step 1: Restart your computer.

Step 2:  Install ndOffice: https://apps.netdocuments.com/apps/ndOffice/ndOfficeSetup.exe

Step 3: Install ndMail: https://apps.netdocuments.com/apps/ndMail/ndMailSetup.exe

Step 4:  Run the batch correct batch file:

Step 4:  Restart your computer.

Watch this video to determine if the batch file got properly installed.