BUG #2042: Installation failed

The following bug has been logged online:

Bug reference: 2042
Logged by: mattias
Email address: mattiasw(at)gmail(dot)com
PostgreSQL version: 8.1.0.2.
Operating system: Windows XP Pro
Description: Installation failed
Details:

Downloaded postgresql-8.1.0-2.zip

and installed and got this.

Internal account lookup failure: No mapping between accound names and
security IDs was done.

Tried it twice. I never installed PG before, but I have mysql and sqlserver
on the same machine.

This is the end of the log file:

Property(S): CostingComplete = 1
Property(S): OutOfDiskSpace = 0
Property(S): OutOfNoRbDiskSpace = 0
Property(S): PrimaryVolumeSpaceAvailable = 0
Property(S): PrimaryVolumeSpaceRequired = 0
Property(S): PrimaryVolumeSpaceRemaining = 0
Property(S): SOURCEDIR = C:\install\postgresql\
Property(S): SourcedirProduct = {34D95765-2D5A-470F-A39F-BC9DEAAAF04F}
Property(S): ProductToBeRegistered = 1
MSI (s) (C8:20) [12:35:28:600]: MainEngineThread is returning 1603
MSI (s) (C8:28) [12:35:28:610]: Destroying RemoteAPI object.
MSI (s) (C8:88) [12:35:28:610]: Custom Action Manager thread ending.
MSI (c) (54:38) [12:35:28:620]: Back from server. Return value: 1603
MSI (c) (54:38) [12:35:28:620]: Decrementing counter to disable shutdown. If
counter >= 0, shutdown will be denied. Counter after decrement: -1
MSI (c) (54:38) [12:35:28:620]: PROPERTY CHANGE: Deleting SECONDSEQUENCE
property. Its current value is '1'.
Action ended 12:35:28: ExecuteAction. Return value 3.
MSI (c) (54:38) [12:35:28:620]: Doing action: Fatal_Error
Action 12:35:28: Fatal_Error.
Action start 12:35:28: Fatal_Error.
Action 12:35:28: Fatal_Error. Dialog created
Action ended 12:35:31: Fatal_Error. Return value 2.
Action ended 12:35:31: INSTALL. Return value 3.