Troubleshooting Missing Dependencies in Windows CE Development

When developing applications for embedded platforms like Windows CE, you may encounter some frustrating challenges. One common issue is the inability of the default smart device project to locate necessary dependencies. For instance, developers often encounter errors when trying to run their applications, such as messages indicating that files like aygshell.dll and CoreDll.dll are missing. If you find yourself in a similar situation, this blog post aims to clarify the problem and provide a comprehensive solution.

Understanding the Problem

The core of this problem lies in the nature of Windows CE as a modular operating system. This means that different devices might come with various modules, making each installation unique. Consequently, your application could be attempting to utilize libraries that are not present in a generic Windows CE installation. Here’s a breakdown of the initial causes of this problem:

• Missing Libraries: The aygshell.dll library is typically associated with Windows Mobile, and if your application requires it, it may be incompatible with standard Windows CE installations.
• Core Library Variability: The CoreDll.dll file serves as a standard library included in Windows CE, but its components may differ based on the modules present in the specific device’s installation.

Crafting a Compatible Executable

To create an executable that can run across generic Windows CE installations without running into dependency issues, follow these steps:

1. Define Your Target Environment

• Assess what you mean by “generic Windows CE installation.” Are you targeting a specific set of devices, or do you want the broadest compatibility possible? Knowing your audience will guide your development choices.

2. Use the Standard SDK or Windows Mobile SDK

• If it’s feasible, leverage the Standard SDK set of components that target a baseline Windows CE environment.
• Alternatively, you can choose to develop for a Windows Mobile platform using the SDK if that aligns with your device specifications.

3. Create a Custom SDK with Platform Builder

• If no appropriate SDK is available, consider generating one with Platform Builder. This tool allows you to create a tailored SDK based on the particular OS project files you have for your device.

4. Remove Dependencies on aygshell.dll

• To ensure greater compatibility, review your application code and identify any sections that rely on the aygshell.dll library.
• Remove these dependencies and make sure you’re not linking to libraries that are specific to Windows Mobile.

5. Testing Your Application

• After making these adjustments, thoroughly test your application on a range of Windows CE devices to confirm that it runs as intended without any missing dependencies.

Conclusion

Encountering dependency issues in Windows CE development is a challenge that many developers face. However, by following the outlined steps, you can create applications that work seamlessly across different Windows CE installations, ensuring that they do not rely on libraries exclusive to Windows Mobile. This approach will not just save time troubleshooting but also enhance the versatility and reach of your applications. Embrace the modularity of Windows CE and develop with compatibility in mind for better longevity in a diverse landscape.

By understanding the dependency landscape and being proactive in your development approach, you can create robust applications ready to thrive in the varied world of Windows CE devices.