How to restrict file download from server in ASP.Net

It can be done by using membership provide in dotnet,

by using membership provider you can ristrict the user to access the website respective page...

for more details you can visit below given link

http://msdn.microsoft.com/en-us/library/6tc47t75.ASPX

http://www.codeproject.com/Articles/281573/ASP-NET-Membership-and-Role-Provider

hopes this help you...

cheer

To the folder add a Web.Config file with following contents and it will restrict access