COM related Exception 0x80010106 (Cannot change thread mode after it is set) when calling CurrentApp:LicenseInformation->IsActive

When I run the Windows Phone 8 project it crashes on this line:

CurrentApp::LicenseInformation->IsActive;

The error message is Microsoft C++ exception: Platform::COMException ^ at memory location 0x00ABE848. HRESULT:0x80010106 (Cannot change thread mode after it is set).

The error code is detailed here http://support.microsoft.com/kb/824480 but I don't understand what I can do because I am calling a function which seems to wrap some COM initialisation.