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2009-12-13T17:10:33.137
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2013-04-23T17:41:27.650
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2013-04-23T17:41:27.650
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That only might start system wide extensions like <code>.bat</code> or even <code>.txt</code>, but it can't always launch correct programs through extensions. Instead try this API or a similar alternative in <a href="http://en.wikipedia.org/wiki/.NET_Framework" rel="nofollow noreferrer">.NET</a>: <blockquote> FindExecutable : shell32.dll Alias : "FindExecutableA" / "FindExecutableW" return type : int parameters : · lpFile Pointer to a null-terminated string specifying a filename. This can be a document or executable file. · lpDirectory Pointer to a null-terminated string specifying the default directory. · lpResult Pointer to a buffer to receive the filename when the function returns. This filename is a null-terminated string specifying the executable file started when an “open” association is run on the file specified in the lpFile parameter. </blockquote> This returns an integer bigger than zero if success and the char value will contain a <a href="http://en.wikipedia.org/wiki/Null-terminated_string" rel="nofollow noreferrer">null-terminated string</a> that points to the executable that launches this file extension then you can use it like this <pre><code>System.Diagnostics.Process.Start ("program.exe $:\path\x.abc"); </code></pre> Instead of <code>program.exe</code>, you'll use the result of the API function, and you'll use the path to the file separated with a space just like a command line. As for the application failure, it might indicate that the program needs administrative rights to run correctly. <code>cmd</code> already got administrative rights, so it can make child applications inherit it, but not windows API. <code>createprocess</code> allows you to use <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/aa379560%28v=vs.85%29.aspx" rel="nofollow noreferrer">LPSECURITY</a> attributes which can help in launching this program with the correct privileges.
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1. POClickOnce application does not start through Process.Start("x.abc") with *.abc associated to the ClickOnce application
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1. USPeter Mortensen
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1. USVirusEcks
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1. CONice try, but your explanation of why it works on CMD is not correct. All my CMD instances are non privileged. The ones that fail to start the ClickOnce application are running in 32-bit, the ones that succeed are running in 64-bit. I will, however, give your suggestion of how to start the ClickOnce app a try, as soon as I can access the machine which exhibits the failure.
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2. COSorry, but FindExecutable does not work for ClickOnce file associations. The following sample code works great for other file extensions, though: class Program { static void Main(string[] args) { var result = new StringBuilder(512); var code = Program.FindExecutable(@"C:\x.abc", null, result); ... } [DllImport("shell32.dll")] static extern IntPtr FindExecutable(string lpFile, string lpDirectory, StringBuilder lpResult); } Dead end here too...
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