But did you read it?
It's illegal to use WMP under Linux with WINE:
You're not allowed to install multiple copies on the same computer, and you're not allowed to install it on computers which are not yours:The accompanying Microsoft software includes computer software and may include ... ... for use with a Microsoft client operating system product...
...IF YOU DO NOT HAVE A VALIDLY LICENSED COPY OF THE CLIENT OS SOFTWARE, YOU ARE NOT AUTHORIZED TO INSTALL, COPY OR OTHERWISE USE THE CLIENT OS COMPONENTS...
They seem to be very well aware that .NET is slow and bloated. Because you are not allowed to publish benchmark results for benchmarks of .NET.2.1 Provided you comply with all applicable license terms and conditions contained in the Client OS Software EULA (which are hereby incorporated by reference except as set forth below) and this Supplemental EULA, Microsoft grants you the right to reproduce, install and use one copy of the Client OS Components [Here: WMP] on each of your computers that is running a validly licensed copy of the Client OS Software.
...
All rights not expressly granted to you in this Supplemental EULA are reserved.
(Do you think it's easy to get that written approval?)3.1 The Client OS Components may include the Microsoft .NET Framework. You may not disclose the results of any benchmark test of the .NET Framework to any third party without Microsoft’s prior written approval.



