DTC is broken ?

Hello,

I've been trying to get IIS 5.1 running on my home computer but it's turning out to be a bit of a nightmare.

I installed IIS okay but when I went to access a page in the browser I got a 500 error. On checking the event logs I found an error like this:

Event Type: Warning
Event Source: W3SVC
Event Category: None
Event ID: 36
Description:
The server failed to load application '/LM/W3SVC/1/ROOT. The error was 'Class not registered'.

On searching the internet I found an article on the subject:
http://msmvps.com/blogs/bernard/archive/2005/03/22/39216.aspx

So I opened up component services and found that I got an error whenever I tried to access the COM+ folder. So I followed the instructions as described here:
http://support.microsoft.com/?id=301919

Unfortunately this didn't work. I still got the error in component services. I looked at the event log again and saw the message 'Could not start MSDTC'. So I opened up the services applet and tried to start Distributed Transaction Coordinator manually. I got an error message along the lines of 'Could not start the Distributed Transaction Coordinator' and error number that was a negative and wasn't recognised by the microsoft support database.

I can't find any information on DTC errors, I'm not quite sure what it does ! I disabled it on my work computer and IIS still ran fine ! Does anyone know of a way to reinstall it ?

XP Pro, right?

Disable simple file sharing
Make sure you're the computer administrator user
Disable any firewalls/script blocking software
Uninstall IIS, reboot, reinstall IIS making sure you're the administrator.
Re-enable any firewall/script blocking

Okay, I figured it out in the end:

1. Uninstall IIS.
2. run "msdtc.exe -uninstall" in the windows/system32 directory.
3. In regedit delete the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSDTC
4. run "msdtc.exe -install" in the windows/system32 directory.
5. Install IIS.

Thanks for posting the solution.