Probably this is not the problem in this case [and for you something else caused it], default browser settings shouldn't affect any ways desktop programs, since they are using
Windows' built-in browser engine to show websites inside applications, and not any kind of installed browsers. This engine rendered (=showed) the result of it couldn't load the websites.
Adobe Flash, Java, or any kind of browser plugins don't play any role web browsers built into applications (so called web views), so I doubt updating them would help in any way to solve this issue. Anyway Java for web browsers and websites is the
least useful nowadays, Java applets which showed in browsers are not really famous in the last 5-6 years, [
info] it's rather suggested to disabled Java in browsers.
@
u****!, Those applications loads websites inside themselves, and these messages show that they can't access the websites.
For so, firstly you should to try to check if your computer can access these sites, so open a command prompt [Winkey+R -> cmd -> ENTER], type
ping dll.infinitymuonline.com, press ENTER and wait for the result. Then open any web browser and open the following website
http://dll.infinitymuonline.com/inews/inews.html (I guess the same as the launcher would open). If there is anything wrong with these, then it means your computer can't access these websites.
If everything is okay after these steps, then it means infinity launcher and WTFast can't access these websites. This can be easily by wrong antivirus or firewall configuration (it worth a try to disable all of them).