Redirect is a sample ISAPI extension to demonstrate redirecting a request.
Important These samples are provided for educational purposes only. They are not intended to be used in a production environment, have not been tested in a production environment, and Microsoft does not provide technical support for them.
Sample Overview
Requirements
Location of the Source Code
Build and Install the Sample
Run the Sample
Sample Output
Helpdesk
This sample redirects requests to a URL specified on the query string. If no query string is present, or if the query string is not identified as a legal target for redirection, Redirect.dll will return a page to the client with brief instructions for its use. Redirections to a resource on the same server as the dll will be handled by IIS and will be transparent to the browser. Redirections to a resource on a different server will result in an HTTP 302 response instructing the browser to obtain the resource from another location.
This sample requires the installation of the following software to function properly:
IIS samples are included in the IIS Software Developer Kit (SDK). You can download the IIS SDK from Platform SDK Update. You can view the SDK at MSDN Online. In the table of contents at MSDN Online, click Web Development, Server Technologies, Internet Information Services (IIS), SDK Documentation, Internet Information Services, Samples.
The following source code files are required for this sample:
File | Description |
---|---|
Redirect.sln | Redirect Visual Studio .NET solution file, required to build this sample in Visual Studio .NET. |
Redirect.vcproj | Redirect Visual Studio .NET C Project file, required to build this sample in Visual Studio .NET. |
Redirect.dsp, Redirect.dsw | Redirect Visual Studio 6.0 project files, required to build this sample in Visual Studio Version 6. |
Redirect.cpp | Redirect source modules containing the code that implements the sample. |
Redirect.def | Redirect.dll definition containing code for creating the sample. |
MAKEFILE | Redirect makefile for command line compilation |
To build this sample using the Visual C++ IDE, the following steps must be performed:
To build and run this sample without using the Visual C++ IDE, the following steps must be performed:
C:\MySamples
, type the following at the command line:
cd /d c:\MySamples NMAKE All
To install this sample, the following steps must be performed:
C:\Samples
and copy Redirect.dll to that folder.inetmgr
in the text box and click OK. Right-click on the Web
site where you want to create a virtual directory, click New, and click Virtual
Directory. In the Alias text box, type the name you want for your virtual directory, for
example, Redirect
. In the Directory text box, type the path to the
folder that contains your files.
In order to run this sample, follow the instructions listed below:
Redirect
, type
http://localhost/Redirect/Redirect.dll
in the Address bar
of IE. For example, the following URL entered on the address line of Internet Explorer will redirect the request to the specified URL on a different server:
http://server/Redirect.dll?http://server2/virtualdir/file.htm
The following URL entered on the address line will redirect the request to the specified resource on the same server:
http://server/Redirect.dll?/virtualdir/file.htm
Output describing usage is displayed after you perform step 1 from Run the Sample if no redirection target is specified. If a target is specified, the output will be the target.
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If here you do not find answers to your questions, visit the Microsoft Help and Support Web site.
Problem | Possible Solution |
---|---|
When browsing to the ASP page, IE returns HTTP 404 - File not found | Verify that you have created a virtual directory of the same name you are typing in the Address box of IE.... |
When building the dll, C++ or VB returns the a permissions error. | Once you have called the dll from your web page, your system considers it a loaded dll. You must unload it to build it again, either by unloading the ASP application or deleting the dll from system32\dllcache. |
When building the dll, C++ returns a permissions error. | Once you have called the dll from your web page, your system considers it a loaded dll. You must unload it to build it again, either by unloading the ASP application or deleting the dll from system32\dllcache. |
When browsing to the dll, IE gives you a permissions error. | The folder and virtual directory must have Execute permissions set on them. |
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