The 1.6 version of Xintegrity is provided as a free download on our website. This program was originally developed by Global Data Integrity. Xintegrity belongs to Security Tools.
From the developer:
Xintegrity makes it virtually impossible for anybody or anything to modify your files without being detected. When Xintegrity detects a modified file it will show exactly how and when the file was modified and display the contents of the modified file in comparison with an optionally backed up copy of the file. All your files [including operating system files] can be protected.
You may want to check out more software, such as VirusKeeper 2008 Pro, AnVir Virus Destroyer or Aliant Security Services, which might be related to Xintegrity.