I've been using Bitcoin Qt on my work computer (my only working computer at the moment) but last week Windows 7 decided that the program's bypassing the firewall to download the blockchain was a security risk and blocked it from doing so. I'm not the network administrator and fiddling with the firewall settings I can access hasn't done anything. While it is absolutely possible that I am missing some obvious solution, I've given up on fixing this. what I'd like to do now is download another offline wallet - one that does not need the entire blockchain - and import my Qt backup. I've tried MultiBit & Electrum, neither of which seem to work (although, again, it is possible that I'm missing something). Is there another program I can use? Should I wait until my laptop is fixed and just re-install BTC Qt on that? Am I out of luck?
Any PC that can run any software that would be able to import
wallet.dat can surely also run bitcoind. You do not need to download the blockchain, not even to have a network connection.
wallet.dat in a proper folder and run bitcoind.
2) Then use another console to do:
bitcoind walletpassphrase password 3600
3) and then you can just export any of the keys you need, using:
bitcoind dumpprivkey publicaddr
If you don't have any password over your wallet, just skip point 2.