http://bugs.winehq.org/show_bug.cgi?id=35814
--- Comment #1 from Nikolay Sivov bunglehead@gmail.com --- Probably that's a problem:
--- 0066:Call user32.FindWindowExW(00000000,00000000,0040f018 L"Shell_TrayWnd",0040e57c L"") ret=00407aca 0066:Ret user32.FindWindowExW() retval=0001002e ret=00407aca 0066:Call user32.FindWindowExW(0001002e,00000000,0040f034 L"TrayNotifyWnd",0040e57c L"") ret=00407acd 0066:Ret user32.FindWindowExW() retval=00000000 ret=00407acd 0066:Call user32.FindWindowExW(00000000,00000000,0040f050 L"SysPager",0040e57c L"") ret=00407ad0 0066:Ret user32.FindWindowExW() retval=00000000 ret=00407ad0 0066:Call user32.FindWindowExW(00000000,00000000,0040f064 L"ToolbarWindow32",00000000) ret=00407ad3 0066:Ret user32.FindWindowExW() retval=00000000 ret=00407ad3 0066:Call user32.GetClientRect(00000000,0033fa48) ret=00407ae0 0066:Ret user32.GetClientRect() retval=00000000 ret=00407ae0 0066:Call user32.SendMessageW(00000000,00000200,00000000,00000000) ret=00407b05 0066:Ret user32.SendMessageW() retval=00000000 ret=00407b05 0066:Call user32.SendMessageW(00000000,00000200,00000000,00050000) ret=00407b05 0066:Ret user32.SendMessageW() retval=00000000 ret=00407b05 ---
Shell_TrayWnd window is created by explorer, together with TrayNotifyWnd and ToolbarWindow32 they're supposed to form a systray windows - these last two are not created in Wine. No idea what SysPager is.