T@b ZS4 (zweistein) video editor project

Ok, I think we've all recognized the lack of a portable video editor. In looking around, it looks like t@b ZS4 (the zweistein executable) has a friendly license and good support.

http://www.zs4.net/news

In posting at the forum, I received the following information:
1) it already has a .zip "installer";
2) purports not to use any registry values;
3) it *does* however register at least one dll using regsvr32.

I understand that last might be a deal-killer? The dev suggests something like:

"tabdec.dll is a "COM" component, and as such implements the entry points DllRegisterServer() and DllUnregisterServer(). The microsoft executable called regsvr32.exe can be used to register the COM component.

Several Installer utilites (Inno for example) have options to simply script a DLL as RegisterServer() style COM object."

Thread here:
http://www.zs4.net/portable

Any advice?