@set @n=0//&cscript.exe -nologo -e:jscript "%~f0"&pause&exit/b

file = "a.txt";

fso = new ActiveXObject("Scripting.FileSystemObject");
s = fso.OpenTextFile(file).ReadAll();
result = '';
dir = '';
s.replace(/^Directory of (.+)|^\d+-\d+-\d+ +\d+:\d+ +\d+(?:,\d+)* (.*?comlog.*)/gim,
    function(s0,s1,s2){
        if (s1) {
            dir = s1.slice(0,-1);
            if (/comlog[^\\]*$/i.test(s1)) result += s1;
        } else result += dir+'\\'+s2;
    });
result = result.replace(/\r/g,'\r\n').replace(/\\\\/g,'\\');
WScript.Echo(result);
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