Sometimes when I try to play a huge video file (>>300mb) by using sandboxed media player, Sandboxie will send msg "file is too big to copy into sandbox". and then it will resume to playback the file.

When I open Sandboxie control panel, the wmplayer.exe process still contrained inside sandbox, Does that mean only the player and the file played are isolated?? if so, how does the player played an isolated file?

Anyone encounter the same?

Ahh, this is caused by the CopyLimitKb setting in the ini. By default it is set to 32768 (32mb), since the video your trying to play sandboxed is bigger than 32mb (300mb>32mb), it spits up the error you see about the file being too big. All you should have to do is change "CopyLimitKb=32768" to "CopyLimitKb=358400" or higher and all should be well.

Thx for the fast reply, SnDPhoenix, by the way, if the file size bigger than the setting, does that mean sandboxie lost it effect to contrain wmplayer??

No. If you check with under "Help & FAQ" and "Configuring Sandboxie through SandboxieINI" you can find out what the CopyLimitKb setting really does.

I quote: "Files larger than this limit can only be read, not updated, by sandboxed programs."

So Sandboxie is still not allowing wmplayer to mess with your large files.

If you are only interested in playing such large files while sandboxed, and not in modifying them while they are sandboxed, maybe you should look into the CopyLimitSilent statement. This will suppress the informational message you receive about SBOX1202.