Thank you, all!
Yes, I use Microsoft's WebBrowser control through COM (like it says somewhere in the help file...) Nothing version-specific in the code AFAICT, but if you have problems with IE you will likely have problems with this control too. I think a working WebBrowser control is more important than the actual IE version, but I may be mistaken... A recent IE version is a very good idea anyway.
The res: protocol is implemented by Microsoft, and the app: protocol is implemented by me. This means I could - in theory - add more special link actions. Since there is some empty space on the start page: if you have ideas about other links/actions to add, please post them and we'll see (but perhaps in a different thread...). Remember that each translation has it's own page, so there could even be specific German (web-)links, for example.
(For the record: RC1 was uploaded to get C11 mode tested early, but it's minus a number of recent bug reports (and a request) - the bugs I can reproduce should be fixed in RC2, but we'll see about that. I have already modified the resource compiler to accept a keyword as a user-defined resource type name (like: id HELP "file"), so that enhancement will certainly be in RC2.)
Now, let's do something useful for a change - like coding...
/Pelle