Bug 44514 - Start Process with whitespace gives incorrect native error code in Win32Exception
Summary: Start Process with whitespace gives incorrect native error code in Win32Excep...
Alias: None
Product: Class Libraries
Classification: Mono
Component: System ()
Version: master
Hardware: All All
: --- normal
Target Milestone: Future Release
Assignee: Henric Müller
Depends on:
Reported: 2016-09-20 07:14 UTC by Henric Müller
Modified: 2016-09-20 09:13 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.

Please create a new report for Bug 44514 on GitHub or Developer Community if you have new information to add and do not yet see a matching new report.

If the latest results still closely match this report, you can use the original description:

  • Export the original title and description: GitHub Markdown or Developer Community HTML
  • Copy the title and description into the new report. Adjust them to be up-to-date if needed.
  • Add your new information.

In special cases on GitHub you might also want the comments: GitHub Markdown with public comments

Related Links:

Description Henric Müller 2016-09-20 07:14:20 UTC
Trying to start a process with " " as name generates native error code FILE_NOT_FOUND (2), but running the same in .NET generates NativeErrorCode ERROR_INVALID_PARAMETER (87). Currently running this on Windows gives ACCESS_DENIED (5).

NativeErrorCode should match the one that the .NET runtime gives and should therefore be ERROR_INVALID_PARAMETER (87) on all platforms.

Code to reproduce the issue:

		Process process = new Process ();
		process.StartInfo = new ProcessStartInfo (" ");
		process.StartInfo.UseShellExecute = false;
		try {
			process.Start ();
		} catch (Win32Exception ex) {
			Console.WriteLine("NativeErrorCode (should be 87):" + ex.NativeErrorCode);

Please also see ProcessTest.Start1_FileName_Whitespace.
PR that discuss this issue: https://github.com/mono/mono/pull/3578