This topic will list known & reported problems with CSE HTML Validator and 3rd party software. Unfortunately, third party software if too often the cause of user difficulties with CSE HTML Validator (other software can be affected as well).
Software that is Reported to (currently or in the past) Interfere or Cause Problems with CSE HTML Validator:
* Invisible Browsing from Amplusnet (reported 2011-09-01): may cause CSE HTML Validator to dump out of memory & disappear when starting
* Online Armor Free (reported 2011-04-27): causes access violation at startup; configure Online Armor to allow CSE HTML Validator
* PC Tools Spyware Doctor (reported 2011-11-19 & 2011-05-23): causes access violations and/or "CSE HTML Validator Editor has encountered a problem and needs to close." messages
* Sophos protection (reported 2010-07-13): causes installation failure (i.e. "Unable to create a temporary file. Setup aborted. Error 5: Access is denied."); disable protection to install
* SysInternals tools, including DiskMon, may trigger the software protection system to not let CSE HTML Validator run
* Zone Alarm may cause various issues from incorrect installation to CSE HTML Validator freezing
* IObit Malware Fighter may cause "a monitor program is running in your system" message
What to do?
* If you are running security software, try to temporarily disable it to see if that will solve the problem. You may also want to set it to ignore CSE HTML Validator or CSE HTML Validator's installation folder.
Recommendations:
* Consider using the free Microsoft Security Essentials (MSE). We haven't had any reports of problems due to MSE, and it's probably one of the better tested anti-malware/anti-virus programs.
Notes:
* Security software is in constant flux, so one day it may cause problems and another day (after an update) it may not
* Anti-virus and security software may interfere with the installation of CSE HTML Validator (as well as other software)



