@Ashley - Yes, i have try that "right click the file and choose Properties-Compatibility-Windows 7/Windows XP" on oggenc2.exe in C2 r106, compatibility problem still going.
For C2 r103.2 i didn't use any Compatibility features, just use oggenc2.exe normally withouh any changes and works normally like the screenshot i post before.
I'm agree, this is very strange problem, especially because you say the tool, "oggenc2.exe", exactly the same file, and no problem with r103.2
I haven't tested it on Windows 7 PC, i will review again when i'm finished test on Windows 7.
Thanks for fast response :)