Sun will be releasing Solaris 10 shortly as a commercial product available for purchase. There is a new file system that is 128-bit, and is protected by md5 checksums, I think this is a great idea for reactos. I think before a program executes there should be a binary verifier that checks this checksum and then allows the program to run. This would help in deterring Windows viruses from attaching themselves to reactos binaries. Since ReactOS is open source it will be harder to protect a binary if there is an attack and a malicious user replaces a dll or an exe. Perhaps this can be done using a small xml file or a txt file called md5sums or something. Please let me know what you think.