well if this helps i just created two cod4 servers on my win dedi with the command lines taken from yours bartman only made a little adjustment
server 1: C:\cod4\iw3mp.exe +set fs_basepath "C:\cod4" +set fs_homepath "C:\cod4\vfor1" +set fs_savepath "C:\cod4\vfor1_01" +set dedicated 2 +set net_ip 81.19.223.24 +set net_port 28960 +exec server.cfg +map mp_bog
server 2: C:\cod4\iw3mp.exe +set fs_basepath "C:\cod4" +set fs_homepath "C:\cod4\vfor2" +set fs_savepath "C:\cod4\vfor2_02" +set dedicated 2 +set net_ip 81.19.223.24 +set net_port 28961 +exec server.cfg +map mp_crash
both servers ran np ;)
