Can the 436HP be programmed with a similar software as win97? I'm used to the win97 interface
I used win500 on a PSR-500 (can't remember the RS equivalent), and there are a similar and very different aspects with the Sentinel software.
There was no way I could program the PSR-500 without win500, the 436, in my opinion, could be used without using the included sentinel software.
The software is really a reflection of the scanners capabilities. Of course the developer puts their own spin on the interface, but they can only do what the scanner can do.
Moving up to the 436 still had a learning curve, I was monitoring freqs moments after firing up the 436 for the first time, but it took me a month to learn how to put together favorites lists that are efficient. As I recall, it was the same way when I started with win500.
Unless you are looking for the virtual control interface, the sentinel software included with a 436/536 should handle all your needs. It's a little quirky here and there (so is win500), but you will learn how to use it by trying things or asking more question here.
I realize this isn't apples to apples comparison, but I hope it helps.