Please don't say "NO one" because this entire forum is full of issues with ADM; but the user may NOT have the exact issue I'm having, that might be true.
I AM saying "no one" because, the ONLY problems people usually have with the Addon Manager are:
1) QUIT to desktop (NOT CRASH) immediately at start, because they used to mix-match the .DAT between scenery and the Addon Manager. This shouldn't happen anymore, since the new installer always gets the most updated files from the internet at start. It might still caused issues, if one is *very* unlucky, and the internet connection drops exactly in the *middle* of the update, and some of the files would be the older version and some the newest. But it's very unlikely, and it's always solved by launching the installer again.
2) CRASH, immediately at start, with a bglmanx.dll error message, because sometimes FSX has a problem executing modules just trusted. This is usually solved by simply launching FSX again, sometimes after a reboot.
Problem 1) is now solved by the new online installer, problem 2) is more due to FSX (it's FSX that "decides" a module has problems, but how come that if you relaunch it, it works ? The "problem" module hasn't changed, obviously...), because it only happens when a newly trusted module is launched.
This covers 100% of the user reports about the Addon Manager. Your kind of crash is the only exception.
NOBODY reported a crash after a while just sitting on the apron doing nothing, like you are.
NOBODY reported a problem writing the EXE.XML, unless they had the file already corrupted by another product, but the *current* installer is able to fix all kind of corruptions, and nobody ever reported any kind XML problems since the current installer is online, except you.
NOBODY ever reported a crash writing the .REG file, in any version of the Addon Manager, including the FS9 ones.
I am able to save the .reg files from my purchases and do other things without incident in the older version of ADM; With version 2.5.1.1, I get CTD's - Is that clear?
It's clear, but still doens't make any sense. The routine that save the .REG file hasn't been touched in ages and it's always the same since the FS9 version of the Addon Manager. And of course, NOBODY reported THIS problem.
How many more people need to report this before you consider this a problem and try to fix it?
At least another one. But there's none right now. And, as I've said, many times already, at least more than 1 report is needed to be at least be worried. But to be FIXED, I need to be able to REPRODUCE IT.