Motorola Phone Tools fails with msimg32.dll problem

I have Vista Ultimate 64.



I have downloaded the version of MPT for Vista 64 from avanquest.com which is 4.5.1c

When I run the programme at the phase:

Setup Status: Motorola Phone Tools is configuring your new software installation:

Shared Files : <WINSYSDIR>\msimg32.dll



The setup stops and I get the error:

Feature Transfer Error

Feature: Shared Files

Component: Shared DLL's

File: <WINSYSDIR>\msimg32.dll

Error: The filename, directory name, or volume label syntax is

incorrect.



I click on ok and installation terminates.



File msimg32.dll is located in C:\Windows\System32 and is file version

6.0.6000.16386 Modification Date: 02/11/2006 12:18 Additional file (same

version) is located in C:\Windows\SysWOW64



My System Information is as follows:



OS Name Microsoft(r) Windows VistaT Ultimate Version 6.0.6000 Build 6000

OS Manufacturer Microsoft Corporation

System Type x64-based PC Processor AMD Athlon(tm)64 X2 Dual Core Processor 4800+, 2400 Mhz, 2 Core(s), 2 Logical Processor(s)

BIOS Version/Date American Megatrends Inc. 0702, 17/01/2006 SMBIOS Version 2.3

Windows Directory C:\Windows System Directory C:\Windows\system32 Boot Device \Device\HarddiskVolume1

Locale United Kingdom Hardware Abstraction Layer Version = "6.0.6000.16386"

Time Zone GMT Daylight Time

Total Physical Memory 2,910.75 MB

Available Physical Memory 1.68 GB

Total Virtual Memory 11.03 GB

Available Virtual Memory 9.77 GB

Page File Space 8.30 GB

Page File C:\pagefile.sys



I have tried installing it on the same drive, on different drives, re-downloaded the file (to ensure it is not corrupt)



Have tried installing another copy of msimg32.dll downloded from .dll site and Vista will not boot with this file only the original.



Avanquest have been very sympathetic but have no suggestions as to why it will not load.



Any suggestions appreciated