This PCSTATS Guide is really more of tip for
solving a very specific problem encountered by web developers who use
certain HTML editors; most notably manifested as an annoying "no such
error in Homesite
4.5, 4.5.1 and 4.5.2 versions. We'll show you how to
fix the underlying problem with Windows XP SP2 and Windows Vista,
so you can get back into the design mode of Homesite and
back to coding.
So why does Homesite Design mode no longer
work? Well it all goes back to a day in 2005 when
Microsoft released the infamous KB891781 hotfix for WindowsXP SP2. This hotfix disabled a crucial Dynamic
HTML Editing Control in the operating system that many applications relied on to
function. Most notably, HomeSite 4.5.x began spitting up "no such interface
supported" errors and crashing instantly when HTML code was brought into
the programs internal 'Design' view pane. The KB891781 hotfix apparently broke
equivalent aspects in programs like Website Weaver, CoffeeCup, KLZ NewsRoom4 and
CityDesk among other applications.
Microsoft: Protecting you by breaking your software
Microsoft released the KB891781 critical update to prevent malicious websites
from accessing a PC though Internet Explorer, and since its release the only
real work around for the havoc it wrought has been to uninstall the hotfix.
Hardly an ideal solution for Windows XP users, and completely ineffective within
As it happens, a little known fix for the WindowsXP KB891781 hotfix can also
be applied to Windows Vista Business - and this is why PCSTATS is talking about
a 2 year old patch job Microsoft messed up. :-)
The Legacy Software Transition - From Windows XP to
HomeSite 4.5.2 was released by a software company
called Allaire. That company was bought by Macromedia, which was later acquired by the makers of Photoshop, and
thus today the current HomeSite 5.5 version is an Adobe product. As HomeSite 4.5.x was the
last iteration to retain
its Design mode feature, this old version is still widely used by developers.
Now, no web programmer worth their salt would ever use a WYSIWYG
editor for coding up a website, but for the convenience of
laying down content with images and charts, Homesite's Design mode
is still an invaluable tool. For doing article layouts, PCSTATS swears by it. The design mode
allows us to quickly format our articles, the PCSTATS newsletter and any text heavy content for
the web with a minimum of fuss.
The problem today is migrating from WindowsXP Professional
to Windows Vista Business - a natural progression many web developers
are embarking on.
As you transition from WindowsXP
to a new operating system, it's not unreasonable to assume you want to
take your legacy programming applications along for the ride. The situation
isn't helped much by the fact that Microsoft Vista software compatibility
is a mixed bag at best. In general it's always wise to
run pre-Vista software in the appropriate Vista Compatibility Mode, with Administrator
Privilege Levels set.
To do that, right click on the
application shortcut > Properties > hit the Compatibility tab and you'll
find the necessary options. The Compatibility tab won't help us get the
Design mode in Homesite working, but luckily the fix isn't too
troublesome to apply.
Fixing Homesite Design Mode
In WindowsXP Service Pack 2 (SP2) systems, the root of
the problem is that hotfix KB891781 installed an updated dhtmled.ocx (ver.
184.108.40.20631) file in the 'C:\Program Files\Common Files\microsoft shared\Triedit'
directory. That updated filed is broken, and doesn't work like
the previous version did.
The fix for WindowsXP SP2 (and Vista Business) systems is to replace
that file with an earlier version, the v.220.127.116.1127 dhtmled.ocx file that existed
pre-KB891791 patch. You can determine a file version by right clicking
on the application file > Properties > Version or Details. After
replacing the non-functioning dhtmled.ocx with the earlier version, the
command "regsvr32.exe /u" is used to unload it from the system registry,
then "regsvr32.exe" is used to re-register it along with one other file
back into the registry.
The steps outlined below apply to a computer system
installed with either a WindowsXP Professional SP2 or
Windows Vista Business.
Close Homesite if you have it running. Then, backup your PCs original
"dhtmled.ocx" file by renaming it to "dhtmled.ocx_old". For your convenience,
ver. 18.104.22.16827 of dhtmled.ocx can be downloaded here. Download and save it to
C:\Program Files\Common Files\microsoft shared\Triedit. Go to Start > Run
> type "cmd" >at the prompt type "cd C:\Program Files\Common
(without the quotes).
Next, enter each of the following commands in sequence, hitting "enter" after each line
and click 'okay' in the window that pops up to say command successfully completed:
regsvr32.exe /u dhtmled.ocx
regsvr32.exe /u triedit.dll
Restart Homesite 4.5.x (or your affected application) and test the Design mode
with an html file - open it, do some changes, switch back to
'Edit' and see if everything works. If it does the "No Such Interface Supported" error
is a thing of the past!
Again, we've found this fix to work in both WindowsXP
Professional SP2 and Windows Vista Business.
Windows Vista and Windows 7 Specific Solutions
In researching this short but handy Guide, PCSTATS also came across this Windows Vista/7 specific
downloadable patch from Microsoft for "DHTML Editing Control for Applications"
). It essentially does what we've just described, installing the two files
noted above to 'C:\Program Files\Common Files\microsoft shared\DhtmlEd' and
registering them with the system... in one swift click. Alas.
Send your comments, suggestions, errors, warnings, and feedback on this short Guide here.
Adobe Homesite product support page - open.
Microsoft Patch for DHTML Editing Control for
Applications - open.