The problem is that I'm an expert in configuring syntax highlighting of UltraEdit. But I don't know anything about the structure of an ASP file. ASP files are usually multi-language files containing VBScript or Javascript, HTML, CSS, ... Without having an example code and knowing the tags used by applications parsing ASP files to determine which block is in which language, I can't help you setting up an appropriate syntax highlighting for *.ASP file with Javascript as base language.
I have explained basically the method used by UltraEdit to detect the blocks of different languages in HTML files with other languages embedded in topic
Syntax highlighting between different languages.
Which *.uew file respectively syntax highlighting language should be associated with files with extension ASP and which other *.uew files should contain the other possible language marker strings as listed at
Syntax Highlighting near the bottom depends on the structure of Javascript driven ASP files which I don't know.