Archive for 2007
CD or DVD drives in Windows XP give error code 39
by Greg on Feb.07, 2007, under PC Repair, Registry, Windows XP
All the logical fixes didn’t work. Reinstall, removed ide drivers, reinstalled again, no worky.
I was getting an Error code 39 (and 37 on another machine), and the DVD/CD drives would not show up in Windows.
“Windows cannot initialize the device driver for this hardware. (Code 37)”
The problem seems to be caused by CD Burner software that is not loading or installed properly. It’s odd because I’ve found this on several machines lately. It occurred to me that there are a lot of programs now that can burn CD or DVD. Itunes, or other music programs for one, they are very common now. But there’s other things, like some accounting software that can backup to CD. You have to watch for any of them that might install their own burning capability.
The solution was to remove the upperfilters and lowerfilters in the registry key below:
Find "UpperFilters" and "LowerFilters" values in this key and delete them:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
After that, I uninstalled the device in Device Manager, and scanned for new hardware. The drive came right back up!
More details on this page:
Vista help and support will not open but I found a fix.
by Greg on Feb.04, 2007, under Windows Vista
In Windows Vista (mine is Business version) my Help and Support would not open. Said something about like:
“internet explorer cannot download from / help”
For some reason, Dreamweaver 8 install messed this up.� The fix was to tweak the file type association.� I just did� a simple registry update, but there might be other ways.
In the registry I had this:
[HKEY_CLASSES_ROOT.xml] @="xmlfile" "Content Type"="application/x-xml" "PerceivedType"="text"
Under HKCR\.xml key, I had a Content Type of “application/x-xml” set.� I updated that to “text/xml”
So the final fix should look like this:
[HKEY_CLASSES_ROOT.xml] @="xmlfile" "Content Type"="text/xml" "PerceivedType"="text"
And my Help and Support started to work!
Master Browser checking with browstat
by Greg on Feb.01, 2007, under Networking, Windows Server
All these years and I’ve never known how to determine what the “master browser” was on my networks. How many times do you see those event log errors about “such and such is not the master browser” or “unable to get a browse list”. Not that I know how to fix all that, but at least I can find out WHAT THE MASTER IS in the first place!
There’s a cool utility called: browstat
Run from command line. There is one stupid thing though, you need to determine your Netbios transport first. To do that, run: net config rdr
C:\>net config rdr
Computer name \\MYSERVER
Full Computer name myserver.yourdomain.com
User name administrator
Workstation active on
NetbiosSmb (000000000000)
NetBT_Tcpip_{0FCE584B-9B98-4D26-A241-1A070D06767A} (00188B3A1EE6)
NetBT_Tcpip_{F55EF45C-33E5-4842-A4AC-8DFF82D07B76} (00188B3A1EE8)
Software version Windows 2000
Workstation domain YOURDOMAIN
Workstation Domain DNS Name YOURDOMAIN.com
Logon domain YOURDOMAIN
COM Open Timeout (sec) 0
COM Send Count (byte) 16
COM Send Timeout (msec) 250
The command completed successfully.
So you can see… what a mess! You need this:
NetBT_Tcpip_{0FCE584B-9B98-4D26-A241-1A070D06767A}
And to get your master browser run this:
browstat getmaster NetBT_Tcpip_{0FCE584B-9B98-4D26-A241-1A070D06767A} YOURDOMAIN
It should return something like: Master Browser: MYSERVER
You can also run: browstat status YOURDOMAIN
This will list all kinds of useful info, including your transports. It shows your backup servers, as well as your master browser.
LSASRV Event ID 40960 Detected an Attempted downgrade attack
by Greg on Feb.01, 2007, under Networking, Windows XP
Event ID 40960 and 40961
“The Security System detected an attempted downgrade attack for server…”
In my case, when we logged the user in and opened Windows Explorer to a network share, we received an error. “The system detected a possible attempt to compromise security.” Then in the event logs, we saw the errors above. Turned out, a previous administrator saved a logon password under this user account. To remedy, you must open Control Panel, User Accounts, and then the Advanced tab. Then click the Manage Passwords button. In there, you can set and modify network passwords for specific servers. (a feature I never knew existed!) Sure enough, the server we were connecting to was in that list and set to the name of an ex-admin. Removed that item, and problem solved!
How to change server comment or description showing in network neighborhood
by Greg on Feb.01, 2007, under Networking, Registry, Windows Server
We had some computers showing a set of numbers as the computer on a mapped drive. They happened to be some numbers auto-added by Dell setup, I think. But that’s not the issue. It’s just showing the wrong thing on a mapped drive.
For example: Running “net view” shows a server like so:
Server Name   Remark
\\server    8400238585
So on our mapped drive it looked like this:
N: Sharename on 8400238585 (Server)
That is so annoying!!!
The fix…
First, change the server comment so it makes sense. On the server:
Right click My Computer, select Manage.
Right click the top item (Computer Management),and select Properties.
Go to Network Identification, and type in the Description you would rather have.
You probably need to restart the Server service or even reboot that server to take effect. You can also do that to other servers from the same location, by right clicking the same item and selecting “Connect to another computer”.
You can also update this in the registry, can’t remember exactly where. But I think its a key called “srvcomment” under HKLM\Currentcontrolset\Services\lanmanserver.
You can also run this on the server:
net config server /srvcomment:”My new description”
Now, to fix XP you need to do this:
http://support.microsoft.com/kb/330193


