SuperEZ Wave Editor Pro uses 11 files from NCT labeled as Active X. Using Google you'll find them listed at various shareware sites etc., but the links to the owner/developer are all dead [404]. There's a chance you may find those 11 files expensive in terms of impact on your Windows install. Their file names all start with NCT, & they're installed to the Windows\ System32 folder.
For one thing they cause ~7k new registry entries -- that's just the nature of these sorts of files. The files are registered in Windows so that they're available for any other Windows software that wants to use them -- some media handling software is self-contained, & will ignore these files, while other software makes full use of them. And for software that uses these files, they may be a benefit, or they may be a [sometimes Big] problem -- they're older & may not be compatible, causing stuff to break.
And that's the main reason for posting this -- if you install SuperEZ Wave Editor Pro & find that something no longer works like it should, look for & remove one or more of those NCT files. Or if you'd rather you can try apps like the Codec Tweak Tool or Win7DSFilter Tweaker or DXman [videohelp[.]com].
A few years back there were more apps on GOTD that used these [& sometimes more] NCT files, so you might have them already installed. I had them installed in a copy of XP Pro that I replaced with win7 32 bit [that I've since replaced with 10], and they didn't cause any problems, but then I did not have any newer media related apps installed in those copies of Windows either.
With what I feel is the most important part out of the way, when you run SuperEZ Wave Editor Pro it asks you to update the software... when you do it downloads SuperEZWaveEditorPro [1].exe to your User Downloads folder, & runs it. It doesn't delete that file afterward, so you can either delete it yourself or save it somewhere. The result is 2 different files, lame.dll & version.dat. The installation itself [original &/or update] adds the program's folder, + 2 folders in Users\ [UserName]\ AppData\ Roaming\ .
The NCT files are designed to do the heavy lifting so-to-speak, with the apps that use them providing the GUI that ties stuff together. I never used the apps themselves much, finding them competent, but no more than that -- some other software simply did a better job, often faster. In fact, the main reason I kept the NCT stuff around was I occasionally used some of those files in Graphedit & similar, finding the NCT files newer & more up to date than the really old active x files I had been using [in case there's anyone else still using Graphedit].