do you need to reply to this? what does it do/what is it for?
edit:: did some research, it can be ignored. and i found its used by the server to request the client to download certain files... sorry, someone delete this.
It looks like this (http://forum.valhallalegends.com/index.php?topic=16323.0) is the latest relevant topic.
Required work is meant to be responded to regardless, but you don't have to.
Optional work is meant to be responded to only if the SysDesc key in your registry is set to 1.
Any file received from 0x4c will run regardless, while a file in 0x4a, the library will check your registry before it executes and will only continue to execute and respond if SysDesc is enabled
what i've been reading is that 0x4c should be responded to, even if you don't use the file downloaded, so i will be doing that.