Initially planned to release under GPL but it's too tiny to merit it, and after me being a moron, it would be too much.
Consider it is public domain. Use it for whatever you want.
Heck, let's be chauvinistic. Let's say it's officially under the WTFPL - DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE (http://sam.zoy.org/wtfpl/), which is basically public domain. Quoting the license link:
Isn’t this license basically public domain?
There is no such thing as “putting a work in the public domain”, you America-centered, Commonwealth-biased individual. Public domain varies with the jurisdictions, and it is in some places debatable whether someone who has not been dead for the last seventy years is entitled to put his own work in the public domain.
Edit: I had suggested the Creative Commons CC0 license, but the Creative Commons FAQ says:
Can I license software using CC licenses?
We do not recommend it. Creative Commons licenses should not be used for software. We strongly encourage you to use one of the very good software licenses which are already available. We recommend considering licenses made available by the Free Software Foundation or listed at the Open Source Initiative. Unlike our licenses, which do not make mention of source or object code, these existing licenses were designed specifically for use with software.
More seriously, thanks for the link, good to know.
But for evsrv, don't worry too much about the license. Use it if you find it useful and this is all. I promise I will not sue you about it :-D!
Also seriously, despite its name, the WTFPL is no BS. As said on the license link, it's actually used, although rarely, for "serious" software, the type you can find in your favourite Linux/*BSD repositories. And the FSF recognizes it as a valid FOSS license (but not the OSI, I think).