An issue has recently occurred with XMTuner 0.4 due to a change on the XM Radio Online system. As a result, there is a new build of XMTuner released to address this issue. XMTuner 0.4.1 will correct the problem. You may download it at http://xmtuner.pcfire.net/
Recently in Bugs Category
Some users of Windows Vista or Windows 7 using User Access Control may see the following security exception:
"Application attempted to perform an operation not allowed by the security
policy. To grant this application the required permission, contact you
system administrator, or use the Microsoft .NET Framework Configuration
tool."
This error may occur on Windows Vista, Windows 7 and/or Windows Server 2008 (R2).
The error occurs because XMTuner does not request rights escalation. This issue will be fixed in the next release of XMTuner.
To work around this problem:
Right-click XMTuner
Click Properties
Select the "Compatibility" tab
At the bottom, check "Run as Administrator"
Click Apply.
Run XMTuner
Accept the UAC escalation prompt
Attempt your task again
