compile wpf form into dll with vbc

Question

i want to convert wpf form into dll file using vbc. this form is having only one button and nothing else.

command is as follow:
Vbc /t:library /r:PresentationCore.dll,WindowsBase.dll,PresentationFramework.dll Window1.xaml

but it give me error as:
D:\satish\iEducation\pEducation\WpfApplication1\WpfApplication1\Window1.xaml(1)
: error BC30636: '>' expected.