I asked how to check modify timestamps with BAT files and launch a command based on an if statement and Wimmel asked if I could use VBScript instead of Batch Files. I think this is a grand idea. This leads to another question
Can I access the VBScript functionality with JavaScript, while still being compatible Windows XP to Current? (specifically checking file modify timestamp and running a command depending on how recently modified)
Not sure that it is a good idea, but yes, you can use JavaScript (actually, JScript) instead of VBScript. Just use ActiveXObject class instead of CreateObject function that is used in VBScript to create objects.
Here is a code that reads the file modify timestamp using Windows Scripting and JScript:
For more information, see JScript documentation and Windows Script Host documentation