# Toad 13.3 Eurekalog's user event handler **URL:** \ **Category:** Toad for Oracle & DevOps Toolkit\ **Created:** [July 1, 2020, 6:41am UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237 "2020-07-01T06:41:30Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![i.saez-scheihing](https://avatars.discourse-cdn.com/v4/letter/i/b3f665/32.png) [@i.saez-scheihing](https://forums.toadworld.com/u/i.saez-scheihing)\ **Post date:** [July 1, 2020, 6:41am UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/1 "2020-07-01T06:41:30Z")
Hi, I've a problem with toad 13.3.0.181 (64 bit) on a Windows 10 laptop. Starting goes fine but when I try to login on a database. I get the following error: ![image](https://global.discourse-cdn.com/quest/original/2X/1/1c1b233ba21cce012f5e1bb5601d8820d9769aa9.png) After that I can't use it and have to kill it via the taskbar. Any ideas? regards, Ivan ---
**Author:** ![i.saez-scheihing](https://avatars.discourse-cdn.com/v4/letter/i/b3f665/32.png) [@i.saez-scheihing](https://forums.toadworld.com/u/i.saez-scheihing)\ **Post date:** [July 1, 2020, 11:51am UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/2 "2020-07-01T11:51:46Z")
Hi, it seems the issue started yesterday after applying a few Windows 10 updates: Security Update for Microsoft [ASP.NEt](http://ASP.NEt) MVC 2 (KB 2993939) KB4557957 KB4561600 KB4560366 regards, Ivan ---
**Author:** ![JohnDorlon](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/johndorlon/32/9997_2.png) [@JohnDorlon](https://forums.toadworld.com/u/JohnDorlon)\ **Post date:** [July 1, 2020, 6:21pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/3 "2020-07-01T18:21:50Z")
I have windows 10 and it says that I am up to date, but don't have that one. You could try resetting Toad's User Files so that it is like a new installation (old settings are backed up so you can recover them if needed later). Steps to do that are here: [Toad for Oracle not working after in place upgrade to Win 10](https://forums.toadworld.com/t/toad-for-oracle-not-working-after-in-place-upgrade-to-win-10/47932/2) Let us know if that helps. ---
**Author:** ![i.saez-scheihing](https://avatars.discourse-cdn.com/v4/letter/i/b3f665/32.png) [@i.saez-scheihing](https://forums.toadworld.com/u/i.saez-scheihing)\ **Post date:** [July 1, 2020, 7:00pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/4 "2020-07-01T19:00:57Z")
Hi John, Thank you for your suggestion but it didn't help. Same issue again. I also did remove Toad altogether and reinstall it again but that didn't solve the issue. I thought I was the only one who did have this problem but now there are at least 5 other people who have the same issue. regards, Ivan ---
**Author:** ![JohnDorlon](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/johndorlon/32/9997_2.png) [@JohnDorlon](https://forums.toadworld.com/u/JohnDorlon)\ **Post date:** [July 1, 2020, 7:08pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/5 "2020-07-01T19:08:09Z")
I'll install [ASP.Net](http://ASP.Net) and see what happens. Will let you know. ---
**Author:** ![JohnDorlon](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/johndorlon/32/9997_2.png) [@JohnDorlon](https://forums.toadworld.com/u/JohnDorlon)\ **Post date:** [July 1, 2020, 8:19pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/6 "2020-07-01T20:19:58Z")
I'm on Windows 10 version 2004. I installed [ASP.Net](http://ASP.Net) here: ![image](https://global.discourse-cdn.com/quest/original/2X/2/2993f1dc08c4fd9a03ae582eeaa3b882344397e1.png) Went to windows update and clicked "Check for updates". It says that I'm up to date, but when I go to command prompt and run the following to check for that update, I'm not seeing it. dism /online /get-packages | findstr KB2993939 Toad 13.3 64 bit starts and connects normally. Not sure what else to try. Open to suggestions. ---
**Author:** ![i.saez-scheihing](https://avatars.discourse-cdn.com/v4/letter/i/b3f665/32.png) [@i.saez-scheihing](https://forums.toadworld.com/u/i.saez-scheihing)\ **Post date:** [July 1, 2020, 8:38pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/7 "2020-07-01T20:38:52Z")
John, This the list of the updates that were installed yesterday (text is in dutch): ![image002.jpg](https://global.discourse-cdn.com/quest/original/2X/d/d9da3f1049c1bbe6ac870ba5d0e6107710b0dc36.jpeg) Regards, Ivan ---
**Author:** ![JohnDorlon](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/johndorlon/32/9997_2.png) [@JohnDorlon](https://forums.toadworld.com/u/JohnDorlon)\ **Post date:** [July 1, 2020, 9:13pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/8 "2020-07-01T21:13:28Z")
Hi Ivan, Ok, I uninstalled all versions of [ASP.Net](http://ASP.Net) except MVC2. Then I re-ran the updates and got the updates shown above. KB4560366 isn't shown in this screen shot, but when I tried to install that one manually, the installer told me that it was already installed. Have you tried running Toad as an administrator? ![image](https://global.discourse-cdn.com/quest/original/2X/c/c0664998a569abdf256f2cae153c8327c3a6771d.png) ---
**Author:** ![i.saez-scheihing](https://avatars.discourse-cdn.com/v4/letter/i/b3f665/32.png) [@i.saez-scheihing](https://forums.toadworld.com/u/i.saez-scheihing)\ **Post date:** [July 2, 2020, 5:16am UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/9 "2020-07-02T05:16:10Z")
John, I ran Toad as administrator: same problem Regards, Ivan ---
**Author:** ![i.saez-scheihing](https://avatars.discourse-cdn.com/v4/letter/i/b3f665/32.png) [@i.saez-scheihing](https://forums.toadworld.com/u/i.saez-scheihing)\ **Post date:** [July 2, 2020, 1:47pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/10 "2020-07-02T13:47:45Z")
John, According a colleague the issue could be cause by two firmware updates: ![image](https://global.discourse-cdn.com/quest/original/2X/c/c51c4817a582b6d2e13d876c4740e3fdaa1deeab.png) We all have a Microsoft Surface laptop. Maybe this information can be helpful. regards, Ivan ---
**Author:** ![JohnDorlon](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/johndorlon/32/9997_2.png) [@JohnDorlon](https://forums.toadworld.com/u/JohnDorlon)\ **Post date:** [July 2, 2020, 1:53pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/11 "2020-07-02T13:53:01Z")
I wish I had one to test with, but I don't. If someone reading this has a Surface Laptop, please let us know if you have this update and if Toad is working correctly or not. ---
**Author:** ![i.saez-scheihing](https://avatars.discourse-cdn.com/v4/letter/i/b3f665/32.png) [@i.saez-scheihing](https://forums.toadworld.com/u/i.saez-scheihing)\ **Post date:** [July 3, 2020, 10:16am UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/12 "2020-07-03T10:16:13Z")
John, The issues was caused by Windows Security Exploit Protection policy change. Toad has been excluded from that policy and now it works fine. The policy change was done the same day the windows update were installed and that's because everyone thought de windows update was the cause. Thank you very much for the assistance and sorry for causing you so much troubles. regards, Ivan ---
**Author:** ![JohnDorlon](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/johndorlon/32/9997_2.png) [@JohnDorlon](https://forums.toadworld.com/u/JohnDorlon)\ **Post date:** [July 3, 2020, 7:47pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/13 "2020-07-03T19:47:43Z")
Oh, wow. Interesting. Can you post the details of the Exploit Protection settings? This would be good information for others, and maybe there is something I can change in Toad that will prevent the conflict. Thanks ---
**Author:** ![i.saez-scheihing](https://avatars.discourse-cdn.com/v4/letter/i/b3f665/32.png) [@i.saez-scheihing](https://forums.toadworld.com/u/i.saez-scheihing)\ **Post date:** [July 7, 2020, 5:51am UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/14 "2020-07-07T05:51:05Z")
John, I’ve no clue about Windows security settings but this is what my colleguea did mention in our internal ticket: Mandatory ASLR Bottom-Up ASLR (address space layout randomization) it seems Toad can't cope with this setting. If I understand it correctly Bottumup ASLR is been disabled. And according to my colleaguea the Windows updates did interact with this setting because the ASLR setting was set long before the windows update. If you need more (precise) information please let me know and I’ll ask my colleague. Regards, Ivan ---
**Author:** ![JohnDorlon](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/johndorlon/32/9997_2.png) [@JohnDorlon](https://forums.toadworld.com/u/JohnDorlon)\ **Post date:** [July 7, 2020, 12:54pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/15 "2020-07-07T12:54:31Z")
Thanks. I am able to reproduce the error after turning on the ASLR settings. ---
**Author:** ![i.saez-scheihing](https://avatars.discourse-cdn.com/v4/letter/i/b3f665/32.png) [@i.saez-scheihing](https://forums.toadworld.com/u/i.saez-scheihing)\ **Post date:** [July 7, 2020, 1:08pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/16 "2020-07-07T13:08:10Z")
John, Okay. If you have a solution for the problem please let me know. We have now a workaround and Toad is working again but the ASLR settings is conform our policy. Regards, Ivan ---
**Author:** ![JohnDorlon](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/johndorlon/32/9997_2.png) [@JohnDorlon](https://forums.toadworld.com/u/JohnDorlon)\ **Post date:** [July 7, 2020, 8:14pm UTC](https://forums.toadworld.com/t/toad-13-3-eurekalogs-user-event-handler/50237/17 "2020-07-07T20:14:51Z")
I originally reproduced it on a VM where I am running an Oracle database and I have a few versions of Toad installed. Then I tried updating a development machine so that I can attempt to debug it. I upgraded to Win 10 2004, with [ASP.Net](http://ASP.Net) MVC2, fully patched....Exploit Protection...and....no error in Toad 13.3. ☹ I'll keep trying. If I discover anything, I'll let you know.