Installation Instructions for Acquia Drupal ??

[Kizuna-Meraki]

I'm trying to install your Dropbox Rest API libraries, but can't seem to get it to work. I downloaded your Dropbox-master.zip and tried placing the contents in these folders to no avail:

C:\inetpub\wwwroot\stadtlabor\sites\all\modules\libraries
C:\inetpub\wwwroot\stadtlabor\sites\all\libraries
C:\inetpub\wwwroot\stadtlabor\sites\all\libraries\dropbox

The error message which keeps appearing when I try to enable the Backup & Migrate Dropbox module is:

"BenTheDesigner's Dropbox REST API library is missing, please download it from https://github.com/BenTheDesigner/Dropbox and place it at sites/all/libraries/dropbox (Currently using BenTheDesigner's Dropbox REST API Missing)"

Any advice?

Windows Server 2008 R2
IIS 7.5
MySQL Server 5.1
PHP 5.3.24
Acquia Drupal 7.23

Modules installed:
Backup & Migrate
Backup & Migrate Dropbox
Libraries API