求助：Visual Studio 2015开发的C# WinForm项目无法在其他电脑运行

Hi there, let's break down why your app is crashing immediately on other PCs and get it fixed. Since your simple WinForm works fine but the one with openhardwaremonitor.dll and circularprogressbar.dll doesn't, the issue is almost certainly tied to those dependencies or runtime environment mismatches. Here's what to check step by step:

1. Ensure Third-Party DLLs Are Included with the EXE #

Local runs work because Visual Studio copies referenced DLLs to your project's bin\Debug or bin\Release folder automatically. When you move the EXE to another machine, you need to copy all required DLLs alongside it:

• Locate openhardwaremonitor.dll and circularprogressbar.dll in your output directory (same folder as your EXE).
• Copy both files to the same folder as the EXE on the target machine.
• Note: openhardwaremonitor.dll might have hidden sub-dependencies (like OpenHardwareMonitor.Hardware.dll or OpenHardwareMonitor.Led.dll—check your output folder for these too and include them if present).

2. Verify .NET Framework Version Compatibility #

Even if you installed .NET on the target machine, make sure it matches the version your project targets:

• In Visual Studio, right-click your project → Properties → Application tab → Check the Target framework (e.g., .NET Framework 4.5.2).
• Confirm the target machine has exactly that version (or a compatible higher version—though some older apps can break on newer frameworks). Install the exact version if needed.

3. Capture Startup Errors with a Log File #

The silent crash means an unhandled exception is killing the app before it can show a message. Add error logging to your Program.cs to see exactly what's going wrong:
Modify your Main method like this:

[STAThread]
static void Main()
{
    Application.EnableVisualStyles();
    Application.SetCompatibleTextRenderingDefault(false);
    
    try
    {
        Application.Run(new YourMainForm()); // Replace with your form's name
    }
    catch (Exception ex)
    {
        string logPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "app_error.log");
        File.WriteAllText(logPath, $"Timestamp: {DateTime.Now}\nError Message: {ex.Message}\nStack Trace:\n{ex.StackTrace}");
        MessageBox.Show($"The app failed to start. Check {logPath} for details.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
}

Rebuild the app, copy the updated EXE and DLLs to the target machine, and run it. The app_error.log file will tell you exactly what's failing (e.g., missing DLL, permission denied, etc.).

4. Check for Administrator Permissions #

openhardwaremonitor.dll accesses low-level hardware information, which often requires administrator rights. Try these:

• On the target machine, right-click your EXE → Run as administrator to test if that fixes the crash.
• If it works, set your app to always request admin rights:
  1. In Visual Studio, add an Application Manifest File to your project (right-click project → Add → New Item → search for "manifest").
  2. Open the manifest and replace <requestedExecutionLevel level="asInvoker" uiAccess="false" /> with:

     <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
     

  3. Rebuild and redeploy the app—now it will prompt for admin rights on launch.

5. Install Required VC++ Redistributables #

Some native DLLs (like those used by OpenHardwareMonitor) depend on the Visual C++ Redistributable package matching your Visual Studio version. Since you're using VS2015:

• Download the Microsoft Visual C++ 2015 Redistributable Package (x86 or x64, matching your project's platform target) and install it on the machine.
• This fixes "missing DLL" errors for native components that OpenHardwareMonitor relies on.

Start with step 1 (copying DLLs) since that's the most common culprit, then use the log file from step 3 if you still have issues—it will point you directly to the problem.

内容的提问来源于stack exchange，提问作者Jayamal Jayamaha