So…As the title says. After I installed comodo (free version) AutoCAD LT 2006 started to CTD about 10 seconds after it had started. It gave me just enough time to open a drawing and then CTD. Comodo is definetly the reason since after I uninstalled Comodo the CAD is working again. I can always use Avira antivirus but I need a firewall too so Id rather use comodo if there is a workaround for this problem.
Open CIS-Defense±Advanced-Computer Security Policy
Delete the rule therein for Autocad
Rightclick on CIS tray icon - Defense+ Security Level - Select Training Mode
Run Autocad
CIS will learn how it works and will create automatic rules for AutoCad without giving you any troubles. It is worth re-installing CIS as it protects you very much.
(It is my suggestion that to avoid pop ups and problems, you may change the defense+ security level to training mode and run the normal programs which you require to run once and then change the defense+ to safe or clean PC mode. It will give you less pop ups.)
No joy. AutoCAD still chrashes to desktop. I also tried adding it to the trusted programs list. Didnt work. Tried adding autodesk to trusted program manufacturer list. Didnt work. Even if I shut down comodo completely the problem doesnt go away.
Is there anything else I can try? It seems there is somesort of conflict with these two and only way I know how to make AutoCAD work is not having Comodo installed
But I kinda wanted this program just because someone recommended me that defence + is very good. But atleast I have a firewall and antivirus now. Maybe in the future there will be a fix for this. I hope
Without checking your d+ log and rules, we will not be able to confirm that its a bug/conflict. I know that you have added it to your trusted list, However it might be stopped even because of some other executable which autocad tried to execute and it could also be the one which you might have not removed from the rules before setting d+ to training mode.
I’m still a complete newbie with this program (and with firewall/antivirus setting alltogether). But if you point me the to the right direction so I can find the logs I’d be happy to send them for you if you want to take a look at them.
Before we start i would like to have some more information regarding this issue.
As You Have Mentioned That Its Started Occuring After The Installation Of CIS, I Would like To Know Did You Received Alerts When You Tried To Open Autocad For The First Time After The Installation Of CIS ?
What You Did With The Alerts. Did You Allowed All The Alerts or Denied Some Or Just Closed The Alert Window ?
Yes. I did get alerts. And as you said the autocad uses many more exe files when it runs.
In short…I allowed everything. And here is the longer version of it too…
All exe files I know Autocad to launch are:
acad.exe
AdskCleanup.0001.exe
WSCommCntr1.exe
AdskScSrv.exe
It first asked if I wanted to allow the execution of acad.exe I answered yes.
Next the acad.exe was launching AdskCleanup.0001.exe. its always running the same time as the acad and I told it to allow this too.
Then acad.exe lauched the updater WSCommCntr1.exe for the autocad and I also allowed that.
I dont think comodo asked anything about AdskScSrv.exe.
The AutoCAD started up just fine. no problems there until I opened up a drawing and started working. At the second I tried to use any command within AutoCAD. Thats when it chrashed. I even left it untouched for a while and it didnt chrash until I tried to use some command in AutoCAD.
AutoCAD LT 2006 has some memory allocations issues and triggers the buffer overflow protection in CIS when you open some drawings. This will not appear in D+ logs.
You can enable and use Defense+, just turn off buffer overflow protection (D+ - advanced - image execution - Uncheck “detect shellcode injection”).
I would not recommend that he truns off buffer overflow protection, it would be better to exclude the AutoCAD folder from Buffer Overflow protection (D+ - advanced - image execution - “exclusions”).