Exchange 2013 - .NetFramework Backward Compatibility

Hi,

in the Exchange Server Supportability Matrix (https://technet.microsoft.com/en-us/library/ff728623%28v=exchg.150%29.aspx) is written that Exchange 2013 SP1 CU7 neets .Net 4.5 or higher.

Because our Monitoring Software requires .Net Framework 3.5 i´m wondering if it´s supported to install older Versions of .Net Framework additionaly.

We didn´t experience Problems in another environment where both Versions are installed - but what about the MS Support ?

Thank you

Jakob