Is it possible to automatically empty a machines internet cache when they log onto a site, an if so could you tell me how.

The reason i ask this is that recently i have done some updates of a web based system used within the factory. Some machines show these updates, however some of the machines only show the old screens.

Each computer is accessing the site via a central server.

Any help would be great, many thanks

Cache control is not really %100. The browser has more control than the web pages (i.e. if the user sets the cache cleanup to never generally ASP can't override it). That being said the following two lines help clean up mot cache issues.

Response.Expires = -1
Response.CacheControl = "No-cache"

Yehuda

The internet cache is a function of the browser, not the machine. You don't have ANY control over that. You can however control your page's expiration as Yehuda describes above.

However, something important to remember with this: If the browser has already been to a page and has cached it, implementing the Response expiration isn't going to help because the browser is not going to see that new page until the old one expires and is thus removed. You would need to manually clear the browser's temp files on each machine, then your new page's "instant" expiration would work.

Peter
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Work smarter, not harder.

ok thanks for your help guys