Deleting the WebCache database – The IE browser cache

How to delete the webcache file:

Read this blog for a clever way of deleting the webcache file Database, the WebCacheV01.dat file located in the %LocalAppData%\Microsoft\Windows\WebCache\ folder

Create a batch file and paste the content below

echo OFF

net stop COMSysApp

taskkill /F /IM dllhost.exe

taskkill /F /IM taskhost.exe

taskkill /F /IM taskhostex.exe

del /Q %LocalAppData%\Microsoft\Windows\WebCache\*.*

net start COMSysApp

echo ON

Save the batchfile as “ClearIECache.cmd” and add it to the logoff script

Side note: The AppData\Local\Microsoft\Windows\INetCache is where the IE temporary files are located


Reason: Read on:


“…Starting with IE10, IE moves the browser cache to a Jet Blue database(also known as ESC database or .edb file), and the old index.dat memory-mapped file is obsoleted. You may read this blog to learn the benefits of this change, this is not the key topic in our article. With the new cache implementation, the cache files are saved in %LocalAppData%\Microsoft\Windows\WebCache\ folder. And, the cache files will be created when a new user logs on.

Actually, the database is a file named WebCacheV01.dat in the cache folder, and its initial size could be around 20-32MB. The size of this file will keep increasing along with you browse more and more websites. Unfortunately, there’s no way to control the initial size of this database, in another word, the minimal size of this file could be >20MB. Now, let’s suppose there are 1000+ users for this terminal server, then totally >20,000MB space is required for every user’s cache database file at least. In this situation, your C drive space will be probably used up as time goes on.

Then, how to avoid the happening of the subjected issue? Maybe you are thinking about deleting the cache files, right? Exactly, this is the only way to resolve the issue. However, the problem is, you are unable to delete the cache files manually even you are a local admin of this server. Don’t worry, here’s a batch file which can help to delete the cache files. Please save the below contents into ClearIECache.cmd file and try to fun this file.” 

source: AsiaTech: Microsoft APGC Internet Developer Support Team


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