Um pequeno aplicativo chamado FileList deve fazer o trabalho muito bem para você, se você quiser algo um pouco mais poderoso do que dir /s > files.txt
Do README:
FileList is a command line utility that produces a list of files of the given path in the CSV format, which can be imported in a spreadsheet or database. The list includes the file name, the size, the path, the last access and change date, etc. Supported Windows versions: Windows 200*/XP/Vista Usage: FILELIST [/OPTION] [/FILTER pattern1;pattern2;...] [/NOHEADER] Path [>list.csv] /NOHEADER Leaves out the column headers from the output. /ATTRIBUTES Includes a column with the attributes that are set for each file. /OWNERS Adds a column that contains the owner of each file. Querying the file owner is unfortunately a slow operation in a Windows domain, this is why file owners are turned off by default. USing this option will significantly slow down the generation of the list. /AUTHORS Additionally extracts name of the author from MS Office documents. Do not confuse the author with the owner. The owner is listed in an extra column by default. This switch slows down the creation of the list. /LASTSAVEDATE Additionally extracts the last save date from MS Office documents. /MD5 Includes a column with the MD5 checksum of each file. /FILTER Allows to specify one or more filters, separated with semicolons. The wildcards '*' and '?' may be used. Using ">" the output can be redirected to a file. INSTALLATION ~~~~~~~~~~~~ Just place FileList.exe where you want, we recommend your Windows folder. TIPS & ANNOTATIONS ~~~~~~~~~~~~~~~~~~ * FileList uses the list separator that is set in the Control Panel of Windows. * Using the extension .CSV for the output file enables you to open the file in Excel with a double click in the Explorer. * The Windows "at" command can be used to schedule the creation of lists with FileList. The following command creates a list of all mp3 files including their owners every monday night: at 00:01 /EVERY:m "C:\path\to\filelist.exe" /OWNER /FILTER *.mp3 c:\ ^>output.txt