What do you mean? Are you trying to say that this interoperability is just a ploy by Microsoft to get control of Linux? That's both foolish and irresponsible. Their agreement dealt with the Enterprise licenses, the ones that cost a couple of hundred of dollars. Even if Microsoft manages to slip in some piece of Pro windows code, you forget that the sources must be released. In other words, changes to the SuSE code can be tracked and monitored and if they are deemed to be inappropriate, end users and independent developers can easily just continue developing that code without Novell. This is seen in CentOS, the offshoot of Red Hat.