This may be a silly question and it may not be possible but I think i remember seeing something that would work. I am trying to create a program that sorts files on one of the computers at work. I Work at a callcenter and we record the calls onto one main computer. The main computer puts them all into one folder. All I have so far is a program set up on a timer that Creates a folder of todays date if it doesnt exist. Now what I need to do next may be the impossible part. I need to move the files into folders per agent. The files look like this (example):

DerrickR-1278162818_2008-7-16.ccr
DerrickR-1278162420_2008-7-16.ccr
SherryK-1278162637_2008-7-16.ccr
MikeW-1278362420_2008-7-16.ccr
MagnumG-74892017281_2008-7-16.ccr

Is there a way to only use the characters up untill the first hyphen to create a folder for the agent by those characters say "DerrickR" and move the files into it?