Not sure why this is, but the following line crashes our WPF app...
Process.Start("mailto:example@stackoverflow.com");
Here's the exception:
System.ComponentModel.Win32Exception
HResult=0x80004005
Message=The system cannot find the file specified.
Source=System.Diagnostics.Process
StackTrace:
at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo)
Note: There is no 'InnerException' reported.
I've confirmed that a mail handler is properly registered by writing this simple HTML file with a mailto:
hyperlink to test...
<html>
<body>
<a href="mailto:example@stackoverflow.com">example@stackoverflow.com</a>
</body>
</html>
You click the link and the mail client opens right up as expected!
Per another post here on the site, I also tried the Blend Interactions method by importing this...
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
Then using it like this...
<Label Content="Send Email">
<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseLeftButtonUp">
<ei:LaunchUriOrFileAction Path="mailto:example@stackoverflow.com" />
</i:EventTrigger>
</i:Interaction.Triggers>
</Label>
but I get the same exception.
So what could be causing this?
Try Setting UseShellExecute:
System.Diagnostics.Process.Start(new ProcessStartInfo("mailto:example@stackoverflow.com") { UseShellExecute = true });
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