Originally Posted by
Jan Olieslagers
I see it is a "Sonderlandeplatz" which means they require PPR
"Sonderlandeplatz" only means, amongst others, that they decide more or less themselves who they let in and when, and not necessarily that PPR is required. If so, it's normally implicit in the first radio contact and is not a big deal. Mühldorf is a very popular and busy field and won't make any problems. A "Verkehrslandeplatz" like Eggenfelden, on the other hand has an obligation to be manned and in operation during opening hours (unless NOTAM'ed).
Oberpfaffenhofen (EDMO) is only for MTOW > 2,000 kg, or "worthy business aircraft" (as they more or less state themselves).
Did you ask in Munich about VFR or IFR? I think they are less unlikely to let you in if you arrive IFR.