Blue Screen message with games that worked just fine.

I have experienced this problem for quite a while now with a lot of games;

I used to be able to play the following games just fine:
Gunz: the duel
Silkroad
ROSEonline

and some other freetoplay games. they worked great and I enjoyed playing them.
Anyway, now, some years later, when I try to play any of those games I get the following Bluescreen stop error:
***STOP: ERROR 0x0000008E (0xc0000005, 0xB9DFCAE5, 0xB9C42B4C, 0x00000000)

this is what I tried to do so far:
cleaning my pc (wiping all the dust from fans and RAM that is)
uninstalling my videocard driver and installing again
scanning my pc with lots of software

Reinstalling windows fixed the problem for one of those games (gunz) but with the other ones i am still experiencing the same problem over and over, whatever i try...

I have uploaded the most recent minidumps. I hope you can help me.

oh right, my pc specifications:
2GHz pentium 4
512MB RAM
GeForce Ti4200 (128MB I believe)

If you need to know anything else for you to help me please let me know

All the dumps crash at khips.sys, which belongs to Kerio Personal Firewall. I found the following thread that says there's a conflict with any game that uses GameGuard. The error is the same as yours, but I can't get the process from your dumps.

The last post is dated February 22, so there may not be an update available. You can always try a different firewall.

http://www.castlecops.com/p899588-khips_sys_related_BSOD.html

BugCheck 1000008E, {c0000005, ba405bd3, ba3f8b04, 0}
Probably caused by : khips.sys ( khips+1c79 )

MODULE_NAME: khips
IMAGE_NAME: khips.sys
DEBUG_FLR_IMAGE_TIMESTAMP: 44ad33f8
SYMBOL_NAME: khips+1c79
FAILURE_BUCKET_ID: 0x8E_khips+1c79
BUCKET_ID: 0x8E_khips+1c79

wow, thanks for responding so soon! I really appreciate that.

about gameguard, FlyFF (also an f2p-game) uses gameguard too, but it still works.

anyway, i will try using a different firewall.
I will keep you posted