File Is In Use Sample

Demonstrates how to customize the File In Use dialog to display additional information and options for files that are currently opened in the application.

This topic contains the following sections.

  • Requirements
  • Downloading the Sample
  • Building the Sample
  • Running the Sample


Product Minimum Product Version
Windows Windows Vista
Windows Software Development Kit (SDK) 6.1


For additional requirements, see the IFileIsInUse_sample.docx file included with the sample.

Downloading the Sample

This sample is available in the following locations.

Location Path URL
Code Gallery Windows Shell Application Samples on Code Gallery
Windows 7 SDK Download Windows 7 SDK


In the case of the Windows SDK, once you have downloaded and installed it, you will find the samples in the installed directory. For example, use of the default installation path for the Windows 7 SDK results in the samples being placed under C:\Program Files\Microsoft SDKs\Windows\v7.0\Samples\.

Building the Sample

To build the sample from the Command Prompt window:

  1. Open the Command Prompt window and navigate to the FileIsInUse project directory.
  2. Enter msbuild FileIsInUse.sln.

To build the sample using Microsoft Visual Studio (preferred):

  1. Open Windows Explorer and navigate to the FilesInUse project directory. For example, the full default installation path is C:\Program Files\Microsoft SDKs\Windows\v7.0\Samples\WinUI\Shell\AppPlatform\FileIsInUse.
  2. Double-click the icon for the FileIsInUseSample.sln file to open the project in Visual Studio. Note  The .sln file name extension is not shown under default folder settings. In that situation, it can be identified by its unique icon or by its type description, "Microsoft Visual Studio Solution".  
  3. From the Build menu, select Build Solution.

Running the Sample

  1. Navigate to the directory that contains the new executable, using the command prompt window or Windows Explorer.
  2. At the command prompt, enter FileIsInUseSample.exe, or from Windows Explorer, double-click the icon for FileIsInUseSample.exe.

For detailed information about this code sample, see the IFileIsInUse_sample.docx file included with the sample.