CODEWITHSUNDEEP
c#.netwinformswinpe
Tiffany
Tiffany

Reputation: 519

Windows Forms App - COM Component Error on file creation - WinPE

I have app, which is running in both Windows and WinPE. In Windows is running ok, in WinPE running ok too but when I save file it returns error. If anybody had this issue please help me with info. I tried dependency walker and moved dlls, installed any packages available, but still same error.

enter image description here

An error occurred while generating the report: Creating an instance of the COM component with CLSID {C0B4E2F3-BA21-4773-8DBA-335EC946E8B8} from the IClassFactory failed due to the following error: 80040111 ClassFactory cannot supply requested class (Exception from HRESULT: 0x80040111 (CLASS_E_CLASSNOTAVAILABLE)).

This is the part where file save happens

string fileName = string.Empty;

if (IsWinPE())
{
    string exeDirectory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
    string reportsFolder = Path.Combine(exeDirectory, "Reports");

    if (!Directory.Exists(reportsFolder))
    {
        Directory.CreateDirectory(reportsFolder);
    }

    fileName = Path.Combine("C:\\", "ErasureReport.pdf");
}
else
{
    using (SaveFileDialog saveFileDialog = new SaveFileDialog())
    {
        saveFileDialog.Filter = "PDF Files (*.pdf)|*.pdf";
        saveFileDialog.FileName = $"ErasureReport_{DateTime.Now:yyyyMMdd_HHmmss}.pdf";

        if (saveFileDialog.ShowDialog() == DialogResult.OK)
        {
            fileName = saveFileDialog.FileName;
        }
        else
        {
            return;
        }
    }
}

DebugCheckpoint("About to save document to: " + fileName);
document.Save(fileName);
MessageBox.Show("Report saved successfully!\nPlease open the file manually.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);

try
{
    Process.Start(new ProcessStartInfo(fileName) { UseShellExecute = true });
}
catch (Exception ex)
{
    MessageBox.Show("The report was saved but could not be opened automatically.\n" + ex.Message, "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}

if (!IsWinPE())
{
    try
    {
        Process.Start(new ProcessStartInfo(fileName) { UseShellExecute = true });
    }
    catch (Exception ex)
    {
        MessageBox.Show("Report saved successfully, but the file could not be opened automatically. Please open the file manually.\n\n" + ex.Message, "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
    }
}

Upvotes: 0

Views: 59

Answers (1)

Tiffany
Tiffany

Reputation: 519

Kind people in the comments pushed me into different ideas and I was able to find and fix the issue.

The issue was the path in this method below, System32 was missing.

private bool IsWinPE()
{
    string windowsDir = "X:\\Windows\\System32";
    return File.Exists(Path.Combine(windowsDir, "winpeshl.ini")) ||
           File.Exists(Path.Combine(windowsDir, "startnet.cmd"));
}

It was my mistake, but this error misguided me and I was looking completely different directions. So if someone will have same problem, this answer may be the solution. Thanks

Upvotes: 0

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