Possible to recover funds from a multi-signature address?

[lxssthxnzxrx]

I created a multi-signature address using http://cosign.co.in/ and sent 0.0099BTC to 3QaZ7robwxxuxfsxYBvtFprfzrWVg23FWN then couldn't work out how to release them properly and forgot about it. Now the link to the address has expired (http://cosign.co.in/w/3QaZ7robwxxuxfsxYBvtFprfzrWVg23FWN).

I still have access to both the sender address (1MCkNwwocD745McjNMGPEDNz1CrKNPeQ6C) and the recipient address (18myeFKeex6QAW53sXKwKUJVRnAzCKUsmT), is there any way to recover the funds using Armory or something similar?

[BunsenBurner]

IIRC, it is a 2-of-3 address, and so if you have the private keys of both the sender and recipient addresses, you can get the bitcoin on the multisig address.

[BunsenBurner]

Thanks, do you know how I would go about it? I've searched some videos on YouTube on how to get it out but it doesn't seem to make much sense to me.

You can use "createrawtransaction" and "signrawtransaction" to create and sign the raw transaction twice (with your two keys).

You can find a very long and detailed step by step walkthrough in the following post.
https://bitcointalk.org/index.php?topic=468334.msg5178588#msg5178588

Please double and triple check the transaction before pushing it.
Please be extra careful that the difference between inputs and outputs will be considered as tx fee.