获取Windows用户C#

我有一个WPF应用程序，它需要获取用户的Windows用户名。我正在使用以下代码行：

MessageBox.Show("Your username is:'n" + WindowsIdentity.GetCurrent().Name);

这在我的电脑和其他开发人员的电脑上运行良好，但对其他人来说，它会崩溃。我认为这是权限问题。错误如下：

Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: notesformultipleproperties.exe
Problem Signature 02: 1.0.0.0
Problem Signature 03: 51cb04a1
Problem Signature 04: PresentationFramework
Problem Signature 05: 4.0.0.0
Problem Signature 06: 504dc7da
Problem Signature 07: 7b4d
Problem Signature 08: 0
Problem Signature 09: System.Windows.Markup.XamlParse
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789
Read our privacy statement online:
http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409
If the online privacy statement is not available, please read our privacy statement offline:
C:'Windows'system32'en-US'erofflps.txt

无论用户拥有什么权限，我都可以允许这行代码运行吗？