Well that was fast. But I am just curious to know if that 'task' was for educational purposes only or you happened to get into your possession a Bitcoin wallet passworded with the said parameters and you were looking to get into it?
Not that I like to get my nose into other people's business but it seems so from a stranger's perspective.
The addres belongs to @OP. I was talking with him on skype.
Also the passphrase to decode the BIP38 private key is:
MiKe@OP said: "4 letter
NAME"
Also he said it cointained both uppercase and lowercase.
@OP nickname cointains a name (Michael). Mike = abreviation of Michael.
Then it was just trying all combinations (uppercase & lowercase).
And i was too late when i figured this out. Somebody else got the 0.1
BTC.
GG.