Trying a method to stop the DFO 7z-ing. Need someone to check how safe this is

Simply put, I followed the steps that this guys made in DFOSource about how to make 7z appear less often. I've been having it happen ridiculously often whenever I AFK, and I'm losing my patience in making my computer stay up using electricity for nothing.

This is where I found the solution:
http://www.dfosource.com/forum/general-d...-home.html

tl;dr version is:

First make a regostry file in this form:

"Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations]
"LowRiskFileTypes"=".exe"
"


Then do the following:

1. Type in Command Prompt "bcdedit.exe /set nointegritychecks ON"
2. Reboot computer
3. Profit

Supposedly this leaves open some obvious security holes in Vista. I wonder how bad is it, or what can happen. If it's nothing too big, what precautions should I take to avoid borking up my computer? Is this a safe method to fix the 7z problem at least until I get a new computer?











*Frick. My computer is acting up again. Still can't keep a DFO shop open. I have no idea why. I give up.

**Mods, I give permission to lock this thread if you think it's not helpful, or no one can offer advice on the problem.