Hello,
By default, RUT955 cannot run asp.net packages, but our device software is OpenWRT based, so if you can find an openWRT solution to this package and our router meet the hardware requirements, it should be able to run. I did some digging and found some information about this package:
https://www.codetd.com/en/article/7071336
You could also search official OpenWRT forums for this package support:
https://openwrt.org/
Regards.