I am not really familiar with classic ASP but it seems to be VB6 code (googling about it) so you should be able to use https://docs.sonarqube.org/display/PLUG/SonarVB6 analyze this. You will have to use the scanner cli (through our Jenkins plugin). You can find the documentation here https://docs.sonarqube.org/x/LB9q.
Cheers,
Amaury