i have what i believe is an unencrypted wallet.dat from 2011 generated by the original bitcoin client. can anyone recommend the steps i should take in order to check it out safely, then transfer btc (if any) to an encrypted wallet with a paper backup going forward?
I'd suggest you look at the bitcoin core released at that point if you simply just want to transfer out the coins as all you need to do is access the private keys and transfer the coins into a new wallet.
The older versions of core are findeable from the bitcoin website.
hereAlternatively, you could try installing the current version of the core and seeing if the -updatewallet command works (however, as the wallet file is 6 years old, it may not).