Installing SAS on a SQL Server 2008 R2 machine

I don't know if this is the correct forum for this but here goes:

Someone is trying to install SAS on our Windows 2008 SQL Server 2008 R2 server.  I don't like installing miscellaneous stuff on the SQL Server machine, but there is no alternative.

So are there any known challenges in sharing a machine with SAS?  Are there any landmines that might affect SQL Server?  

Thanks,

Michael