Don’t know when but I pretty sure it was after upgrading to Notes 9 and maybe IE 10…sometime…several months ago…I started getting truly unlimited numbers of IE windows popping up with an error if I inadvertently clicked on a mailto link.
After getting tired of holding down Alt+F4 continuously to try and close the windows as fast as they opened until they all went away, I used The Google (nicked that term from Tim Tripcony!) to discover a solution which can be found here.
“When user clicks on e-mail link (MAILTO link) he gets “Could not perform this operation because the default mail client is not properly…”
when he clicks “OK” a bunch of Internet Explorer windows start popping up (for those who remember, it’s like this prank java script that goes into infinite loop opening new IE window).”
The fix was to edit the Windows registry as shown in the image below.
[HKEY_CLASSES_ROOTmailto]
“URL Protocol”=””
“URL Protocol”=””
