Can't install gwt developer plugin for IE 7 or 8

Question

I want to install gwt developer plugin for IE (I already installed it on chrome and firefox without any problem). When i want to install it for IE7 (on both vista with sp2 & windows server 2008 with sp2), it says that plugin installed sucessfully, but it does not work & nothing adds under add-ons section.
I upgraded my ie to latest 8 version & even installed google optimized version of IE8, but it couldn't help me.
Any idea ?

Answer 1

I had the exact same problem on IE8 windows XP, where it said it installed successfully. But it still showed the install message in the browser (and not the actual application).

I figured out why this was not working for me, and the root cause was that the network administration login routine apparently had created two profiles for me:

C:\Documents and Settings\g43899 (outdated profile location) and

C:\Documents and Settings\g43899.ND60A600 (new profile location)

Before I explain further, have a look at the suggestions on the GWT defect list, issue 4358:

1. Is the following registry key installed: HKEY_CLASSES_ROOT\CLSID{1D6156B6-002B-49E7-B5CA-C138FB843B4E}? If so, what are its subkeys and values?
2. What happens when you run "regsvr32.exe oophm.dll"? Can you try running "regsvr32.exe /u oophm.dll" and then "regsvr32.exe oophm.dll"?

On my machine, the registry key did not exist. Furthermore, I got an alertbox error when running command regsvr32.exe oophm.dll:

LoadLibrary("oophm.dll") failed - The specified module could not be found.

I was able to locate the DLL file to the first folder at

C:\Documents and Settings\g43899\Application Data\Google\Developer Plugin\IE\oophm.dll

But as this location was related to the outdated profile, I did the following

1. Moved folder from Application Data\Google\Developer Plugin into the new profile location.
2. Ran regsvr32.exe "%APPDATA%\Google\Developer Plugin\IE\oophm.dll"

After that command, I could actually see the registry key HKEY_CLASSES_ROOT\CLSID\{1D6156B6-002B-49E7-B5CA-C138FB843B4E}. Now everything suddently worked. Hope this can help you.

I am adding the full contents of ´HKEY_CLASSES_ROOT\CLSID{1D6156B6-002B-49E7-B5CA-C138FB843B4E}` in case you need it.