Specifically I want to know about SDELETE by Mark Russinovich. I didn't find any license attached, although he holds a Copyright for it..
I want to know because I want to distribute it in my own software. What are the license terms? Can I freely distribute it?
The Microsoft Sysinternals web page has links to the software license and also a license FAQ page at: https://docs.microsoft.com/en-us/sysinternals/license-faq
The answer to your main question is "No".
Q: May I distribute Sysinternals utilities in my software, on my website, or with my magazine?
A: No. We are not offering any distribution licenses, even if the 3rd party is distributing them for free. We encourage people to download the utilities from our download center where they can be assured to get the most recent version of the utility.
