[Bug 50623] Windows ISO Downloader 8.45 - Error messages and freeze with wine-mono

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50623

--- Comment #2 from Esme Povirk  ---
A +ieframe log shows that ieframe is returning a Document object, but it's
being rejected by the WebBrowser class.

[00000024: 1.76671 2] ENTER:c System.Windows.Forms.WebBrowser:get_Document
()(this:1db40788[System.Windows.Forms.WebBrowser Windows-ISO-Downloader.exe])
0024:trace:ieframe:WebBrowser_get_Document (001C8C78)->(0031E6D0)
[00000024: 1.76685 2] LEAVE:c System.Windows.Forms.WebBrowser:get_Document
()([OBJECT:00000000]

Some print statement debugging shows that it gets an object from its COM
wrapper, but it fails to get an IHTMLDocument2 interface for it.