177083 - Mozilla does not start on Windows 95

Status: VERIFIED FIXED

(SeaMonkey :: UI Design, defect)

Description

[Torben]

User-Agent:       Mozilla/5.0 (Windows; U; Win95; en-US; rv:1.2b) Gecko/20021024
Build Identifier: ftp://ftp.mozilla.org/pub/mozilla/nightly/2002-10-25-04-trunk

Mozilla builds 2002102504 and newer do not start on windows 95. You get the
splash screen and then nothing - no select profile dialog, no browser window.
Starting with a specified profile (-P profile) does not work either. Tested
builds with this error are 2002102504, 2002102508, 20002102704 (all trunk).
Latest working build is 2002102415.
All builds were downloaded as the talkback-zip files, unzipped in to new
directories.

Reproducible: Always

Steps to Reproduce:
1. Install mozilla build 2002102504-trunk or newer on win 95
2. Start mozilla


Actual Results:  
Splash screen shows up, then nada.

Expected Results:  
Mozilla should start.

This is not a dupe of Bug 170969 (see bug 170969 comment 26)

Comment 1

[Vincent]

I noticed that the newest Phoenix built 2002-10-28-08-trunk loads the IE dll
"shfolder.dll" during start-up on my win95 machine.  Why is Phoenix/Mozilla
using IE dlls?

Comment 2

[Asa Dotzler [:asa]]

setting bug status to New. Mozilla and Phoenix builds fail to start on win95.
This seems to have been introduced on 10/24 (last known working build was on the
23rd). This is a serious regression and needs to be tracked down. 

Comment 3

[Asa Dotzler [:asa]]

" OK, I rebooted from my beautiful Linux desktop into Win95, version 4.00.950
retail copy, and pulled down the latest Phoenix build. It does not start, as
described on the mozillaZine front page. I copied all the EXE and DLL files into
one directory and opened them with the Dependency Walker
(http://www.dependencywalker.com/) and it showed that gkwidget.dll was importing
a function called GetGUIThreadInfo from user32.dll which does not exist in my
Win95 version of the DLL.

I replaced the bad version of gkwindget.dll with the copy from the 10/21 build
and Phoenix started fine.

MSDN shows "Minimum operating systems: Included in Windows 98, Windows NT 4.0
SP3" for GetGUIThreadInfo().

I apologize for posting only here. I do not have a Bugzilla account."

Comment 4

[Asa Dotzler [:asa]]

aaronl made changes to widget around the date this began failing. Aaron, does
this look like something you could have broken?

Comment 5

[Asa Dotzler [:asa]]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/Windowing/Windows/WindowReference/WindowFunctions/GetGUIThreadInfo.asp

Comment 6

[Aaron Leventhal]

I'm using GetGuiThreadInfo to get the currently focused window, according to
what MS Windows says it is. If there's another better way to do this I could use
that.

Comment 7

[Aaron Leventhal]

I think I might be able to use this instead:
HWND GetForegroundWindow(VOID);
It's available on win95 and nt 3.1

Comment 8

[Aaron Leventhal]

Attachment: Use dll instead of static library method, for GetGUIThreadInfo

Seeking r=/sr=

Asa gave verbal a= over IRC

Comment 9

[Kyle Yuan]

Comment on attachment 104609 [details] [diff] [review]
Use dll instead of static library method, for GetGUIThreadInfo

r=kyle

Comment 10

[Aaron Leventhal]

Comment on attachment 104609 [details] [diff] [review]
Use dll instead of static library method, for GetGUIThreadInfo

a=asa on IRC

Comment 11

[Alec Flett]

Comment on attachment 104609 [details] [diff] [review]
Use dll instead of static library method, for GetGUIThreadInfo

sr=alecf

Comment 12

[bomfog]

Saw asa asking for data-points from W95 users--looks like the need is past, but ....

win95 4.00.950 C
Pentium 350 mhz
64 mb ram

2002102415 was the last working build, spot-checked through 2002103010
w/no joy found.

HTH.

Comment 13

[Aaron Leventhal]

checked in

Comment 14

[Torben]

Problem gone in build 2002103110. Veryfing.

Comment 15

[André Dahlqvist]

*** Bug 178156 has been marked as a duplicate of this bug. ***

Comment 16

[Gilles Durys]

*** Bug 181832 has been marked as a duplicate of this bug. ***

Comment 17

[Simon Paquet [:sipaq]]

*** Bug 183098 has been marked as a duplicate of this bug. ***