FileDisk in Vista problems

Hi, ALL

FileDisk(http://www.acc.umu.se/~bosse/) runs very well in Windows XP, but in Vista, general user can mount/umount a disk, but can't execute "some" .exe(e.g., setup.exe in Visual Studio, MS SQL 2005, etc). Administrator can execute any .exe, but when a disk mount by Administrator, it doesn't appear in Windows Explorer. If run "c:\windows\explorer i:", it can be seen.

In the source code, I try to create DeviceObject with IoCreateDeviceSecure, its SDDL string is "read/write/execute for everyone", but that doesn't affect the problem.

So, how to enable the SDDL to authorize normal user to read/execute files in virtual disks? Or how to add registry settings to do that?

Thanks

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