This file is part of the Web Cake web browser extension, an adware plugin for various web browsers designed to deliver context based advertising injected directly in the web pages a user is viewing as well opens advertisements that appear independently outside the context of the program, website, or other source the advertisements are promoting. While the file properties state the file is developed by 'Microsoft Corporation', this is not the case and it is designed just to look like a legitimate Microsoft system file. The file nsupport.dat by Web Cake has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is part of the Yontoo branded browser-extension.