Which program creates the "phar_auto_file" class in the windows registry?

When I look into my registry, I see that  .phar files are classified as "phar_auto_file". Does anybody know which program is creating these entries? I remember I used the PHP installer from php.net for windows in the past, so probably this one does it, but I don't know for sure and if anybody knows, please share. I can not find much reference to this string. lxr has nothing, even google is sparse. -- hakre