Problem installing SQL Server 2005 express, In windows 2000

I have downloaded SQL Server 2005 express from microsoft's site and tried to install in windows 2000 service pack 4 but having an unexpected error. The screenshot and log file is attached. Please suggest.

The error log is as shown:

Microsoft SQL Server 2005 Setup beginning at Fri May 05 21:36:51 2006
Process ID : 1008
e:\469a4a9ba4bfdc9d2db501289fb676\setup.exe Version: 2005.90.2047.0
Running: LoadResourcesAction at: 2006/4/5 21:34:50
Complete: LoadResourcesAction at: 2006/4/5 21:34:50, returned true
Running: ParseBootstrapOptionsAction at: 2006/4/5 21:34:50
Loaded DLL:e:\469a4a9ba4bfdc9d2db501289fb676\xmlrw.dll Version:2.0.3609.0
Complete: ParseBootstrapOptionsAction at: 2006/4/5 21:36:51, returned false
Error: Action "ParseBootstrapOptionsAction" failed during execution. Error information reported during run:
Could not parse command line due to datastore exception.
Source File Name: utillib\persisthelpers.cpp
Compiler Timestamp: Wed Oct 26 16:38:20 2005
Function Name: writeEncryptedString
Source Line Number: 124
-
writeEncryptedString() failed
Source File Name: utillib\persisthelpers.cpp
Compiler Timestamp: Wed Oct 26 16:38:20 2005
Function Name: writeEncryptedString
Source Line Number: 123
-
Error Code: 0x800706b5 (1717)
Windows Error Text: The interface is unknown.

Source File Name: cryptohelper\cryptsameusersamemachine.cpp
Compiler Timestamp: Wed Oct 26 16:37:25 2005
Function Name: sqls::CryptSameUserSameMachine::ProtectData
Source Line Number: 50

1717
Could not skip Component update due to datastore exception.
Source File Name: datastore\cachedpropertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:20 2005
Function Name: CachedPropertyCollection::findProperty
Source Line Number: 130
-
Failed to find property "InstallMediaPath" {"SetupBootstrapOptionsScope", "", "1008"} in cache
Source File Name: datastore\propertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:21 2005
Function Name: SetupBootstrapOptionsScope.InstallMediaPath
Source Line Number: 44
-
No collector registered for scope: "SetupBootstrapOptionsScope"
Running: ValidateWinNTAction at: 2006/4/5 21:36:51
Complete: ValidateWinNTAction at: 2006/4/5 21:36:51, returned true
Running: ValidateMinOSAction at: 2006/4/5 21:36:51
Complete: ValidateMinOSAction at: 2006/4/5 21:36:51, returned true
Running: PerformSCCAction at: 2006/4/5 21:36:51
Complete: PerformSCCAction at: 2006/4/5 21:36:51, returned true
Running: ActivateLoggingAction at: 2006/4/5 21:36:51
Error: Action "ActivateLoggingAction" threw an exception during execution. Error information reported during run:
Datastore exception while trying to write logging properties.
Source File Name: datastore\cachedpropertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:20 2005
Function Name: CachedPropertyCollection::findProperty
Source Line Number: 130
-
Failed to find property "primaryLogFiles" {"SetupStateScope", "", ""} in cache
Source File Name: datastore\propertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:21 2005
Function Name: SetupStateScope.primaryLogFiles
Source Line Number: 44
-
No collector registered for scope: "SetupStateScope"
02AFCFC0Unable to proceed with setup, there was a command line parsing error. : 2
Error Code: 0x80070002 (2)
Windows Error Text: The system cannot find the file specified.

Source File Name: datastore\propertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:21 2005
Function Name: SetupBootstrapOptionsScope.InstallMediaPath
Source Line Number: 44

Class not registered.
Failed to create CAB file due to datastore exception
Source File Name: datastore\cachedpropertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:20 2005
Function Name: CachedPropertyCollection::findProperty
Source Line Number: 130
-
Failed to find property "HostSetup" {"SetupBootstrapOptionsScope", "", "1008"} in cache
Source File Name: datastore\propertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:21 2005
Function Name: SetupBootstrapOptionsScope.HostSetup
Source Line Number: 44
-
No collector registered for scope: "SetupBootstrapOptionsScope"
Message pump returning: 2

I had what looks to be the same problem trying to install on three different Windows XP Pro systems. They all had the same problem which was caused by not having the AppData key in \Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders. Here is the text posted by Arron Rouse on Developers dex.
After a good amount of delving with RegMon, I found out why it was not
installing on my customer's build: there was a missing Registry key.

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User
Shell Folders\AppData

When a user is created on a system, the AppData key is copied from the
..Default area of the registry:

HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\User
Shell Folders\AppData

It seems the key had been messed up in my customer's build. Both should be a
REG_EXPAND_SZ and both should be set to %USERPROFILE%\Application Data

Note that if the key is missing on your system, you might have problems when
you put it back in as many programs seem to failover to using the Local
AppData key if it's missing. You might have to set the AppData key to
%USERPROFILE%\Local Settings\Application Data