December 22 2008
Version 6.00 released
Supported Windows 95/98/Me/NT4/2000/XP/2003/VISTA.
Compatible with all known antiviral software.


What's new?

1. Enforcing Security.
Improved scanning malware.
2. All RegRun tools are digitally signed.
RegRun executable files and drivers are signed by digital sign approved by Microsoft.
"Code signing is the process of digitally signing executables and scripts to confirm the software author and guarantee that the code has not been altered or corrupted since it was signed by use of a cryptographic hash."
3. Updated design of all tools.
4. Fixed small bugs.
5. Compatibility. Resolved problem with crashing if a VISTA DEP is active for all applications.

http://greatis.com/security/news.htm