Broken zip support in update?

After I updated today when GameEx goes to unzip a game it dumps the unzipped files to c:\users\username\appdata\local emp\Unzipped7-Zip\, but the files are only 1kb. The contents of the unzipped files are nothing but a capital D.

Unzipping them myself, using 7za.exe that came with GameEx, they are extracted at their expected sized. The files themselves are zip files, and the results are the same regardless of what game or system chosen.

From log.txt

20:26:39.1  11/26/2012:  Extracting: C:\emu\roms\snes\Castlevania - Dracula X.zip
20:26:39.7  11/26/2012:  Running: cmd.exe /c C: snes.cmd "C:\Users\Tom\AppData\Local\Temp\Unzipped7-Zip\Castlevania - Dracula X (USA).sfc"
20:26:39.9  11/26/2012:  Shutting down display

From runit.bat

chcp 65001
C:
CD C:\Users	om\AppData\Local\Temp\Unzipped7-Zip
"C:\GameEx\7za.exe" l "C:\emu\roms\snes\Castlevania - Dracula X.zip" > "C:\Users\Tom\AppData\Local\Temp\Unzipped7-Zip\list.txt"

From runitgame.bat

chcp 65001
C:
CD "C:\emu\retroarch-win32-0.9.7"

snes.cmd "C:\Users\Tom\AppData\Local\Temp\Unzipped7-Zip\Castlevania - Dracula X (USA).sfc"