For the latter, bills have been paid long ago (sunk costs), titles are carried in inventory at or close to zero cost, and direct mail campaigns will create a low cost of goods sold and will be able to sustain a lower rate of response.
A browser is software that is used to access the internet. A browser lets you visit websites and do activities within them like login, view multimedia, link from one site to another, visit one page from another, print, send and receive email, among many other activities.
Browser service or Computer Browser Service is a feature of Microsoft Windows to let users easily browse and locate shared resources in neighboring computers. This is done by aggregating the information in a single computer Browse Master (or Master Browser). All other computers contact this computer for information and display in the Network Neighborhood window. Browser service runs on MailSlot / Server Message Block and thus can be used with all supported transport protocol such as NetBEUI, IPX/SPX and TCP/IP.