I started with Windows 7 and I realized that I couldn't drop files on .js javascript files anymore. I couldn't even see a highlight when hovering over the target files, like I could it behaved with other files (vbs, jse and bat). "What the hell?", I thought I have been googling for so long without answers to my problem that I just have to write it here. Hope it saves someone some time. A lot of things that I found did clear my path to the solution below, but, for the record, none of these were thé solution: filetype settings or their association settings " open with " settings registry keys and values in ".js" as "JSFile" in HKEY_CLASSES_ROOT , especially " shell " keys DropHandler Open Commands etc.. As a matter of fact, everything worked with jse files, so I made sure the registry looked exactly the same for ".jse" and "JSEFile" in HKEY_CLASSES_ROOT. No luck. Until I found the following " UserChoi