Windows 7 has the Bit Depth column option on 'more...', but you are correct that the Sample Rate is missing (Windows internally knows it as 'Audio Sample Rate').
dBpoweramp adds Audio Sample rate for the details page on all audio tracks, and the property section (which is shown at the bottom when a file is selected). I am going to investigate if the Audio Sample Rate column can be added programatically as a custom column.
dBpoweramp adds Audio Sample rate for the details page on all audio tracks, and the property section (which is shown at the bottom when a file is selected). I am going to investigate if the Audio Sample Rate column can be added programatically as a custom column.