Improve company productivity with a Business Account.Sign Up

x
?
Solved

Cache screwed me up

Posted on 2000-02-24
1
Medium Priority
?
193 Views
Last Modified: 2010-04-02
My co-worker wrote a C++ function that uses the CInternetfile class to get a file via FTP from our server to a local directory, say C:\XXX.  However, we found out, after installing IE5, the file is cached in the Temporary Internet Files Directory.  Therefore, sometimes when I open the file from C:\XXX, the content is the same even if the content on the server has changed.  It obviously got the file from the cache.  
I tired to delete the file from the cahce, but windows does not allow me to do so sometimes.  From Visual Foxpro, I can't delete the file from the cache too.  I believe that it is controlled by Windows.  so I guess deleting the file is not a possible way...

How can I force it to download from the server, not the cache?

0
Comment
Question by:lippo
1 Comment
 
LVL 23

Accepted Solution

by:
chensu earned 150 total points
ID: 2556850
1. There is an option which controls the behavior.

Control Panel/Internet/General/Temporary Internet files/Settings/Check for newer versions of stored pages

2. Use the Persistent URL Cache Functions to delete the cached files, such as DeleteUrlCacheEntry.

http://msdn.microsoft.com/workshop/c-frame.htm?951459852650#/workshop/networking/wininet/overview/cache.asp
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Unlike C#, C++ doesn't have native support for sealing classes (so they cannot be sub-classed). At the cost of a virtual base class pointer it is possible to implement a pseudo sealing mechanism The trick is to virtually inherit from a base class…
Article by: SunnyDark
This article's goal is to present you with an easy to use XML wrapper for C++ and also present some interesting techniques that you might use with MS C++. The reason I built this class is to ease the pain of using XML files with C++, since there is…
The viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.
The viewer will learn additional member functions of the vector class. Specifically, the capacity and swap member functions will be introduced.

585 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question