rem change unc_src, unc_dst, src_path, dst_path accordingly
@echo off
for /f "tokens=*" %%G in ('dir /b /a:d "\\unc_src\src_path\"') do (
echo zipping %%G...
c:\apps\7z\7za.exe u -r -y -up0q0y2 -mmt -ms=off \\unc_dst\dst_path\%%G.7z "\\unc_src\src_path\%%G\*.*"
)