[Bug 13553] Selecting a drive results in Please Insert Disk dialog

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=13553





--- Comment #7 from Karl Relton <karllinuxtest.relton at ntlworld.com>  2008-06-24 17:32:54 ---
Well hey diddle diddle.

I did various hacky experiments, and then some lateral thinking - from the log
the only thing the application is really doing (at the point of displaying its
gui) is a SHGetFileInfoW with flags=0x200:

trace:shell:SHGetFileInfoW L"u:\\" fattr=0x0 sfi=0x32c238(attr=0x7bca29e5)
size=0x2b4 flags=0x200

Thus it is only requesting the 'displayname' of the path. Now assuming the
application isn't being naughty, and assuming this function returns more than
requested, what could there be in the returned displayname that might be of
significance?

Well I tried engineering it so that the returned displayname would end with a
colon ':' character (mkdir $HOME/test: ; ln -s $HOME/test:
$HOME/.wine/dosdevices/t:).

Then selecting t: in the gui worked - no prompt for please insert disk!

So the application is simply looking at the returned displayname, and deciding
based on whether it has a trailing ':' character!!

So I guess the application is bad in itself, and wine can't necessarily help
it.

The only way I can see of working round this problem (without kludging in
native dlls for shell32 and friends) is to have a per-app switch to disable the
unix shell folder functionality.


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