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Transferred from: http://cqujsjcyj.iteye.com/blog/736624
Use IIS to open the virtual host space to set up the site, and sometimes you will find that the site content has been updated, public access has not followed the update! This is mostly caused by the IIS cache, the IIS cache on the one hand to improve the performance of the server, on the other hand, it brings serious updates to the site, then how should we manually clean it? Next, teach you a way to manually clean up the IIS cache!
First, let's look at the HTTP protocol, and you'll find that the HTTP headers returned from the server can define such a command cache-control:no-cache. This is how we solve the problem, let's see how to use the IIS Configuration Management tool to add this command to each server's HTTP return.
The first step:
Open the IIS Configuration Management tool (Internet Information Services (IIS) manager).
Select a site (if you want to configure for all sites, select the site icon in the point), click the Properties button and a configuration window pops up
Step Two:
Select the HTTP Header tab, and you'll see a column like "Custom HTTP Headers". Ok! Here it is, at last!
Step Three:
Click the "Add (D) ..." button next to the dot to add the command.
In the window that pops up: "Cache-control" in "Custom HTTP header header (C)", enter: "No-cache" in "Custom HTTP headers value (U)".
OK, all right here, all the way to "OK" to save. This will automatically erase the IIS cache!
[GO] Clearing the server IIS cache common methods