Nope, JavaScript and JScript are very similar but are certainly not the same. If you want to use those AES scripts listed
here you need to convert them to JScript in Plus!.
Also, a Plus! Script Pack is not just a script file (it is a zipped file containing script files and/or other files and maps); you can't just rename the file extension from a script file to .plsc to convert it into a script pack.
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