Original Article quoted below:

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On Wednesday, January 9, 2002 at 9:23 pm, Dave wrote:
Well, after about a week of tearing my hair out over this *&%$# error, I finally
found a solution.  Basically came down to changing a registry value.  Here's the
solution:

Solution for the error 1606 Could not access Network Location. Tools> .All Users\.

1. Startup > Execute... > regedit ---> Accept

2. In the Registry go to:
\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders

3. Common Administrative Tools must have the value: C:\WINDOWS\All Users

4. In the Registry go to:
\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell
Folders

5. Common Administrative Tools must have the value: %SYSTEMROOT%\All Users

Hopefully, posting this will save the time and aggravation I went through with anyone
else who comes across the same error.  Gotta admit though, I learned alot about XP
while researching the problem.
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On Thursday, August 8, 2002 at 9:08 pm, John Todd wrote:
I have Windows 2000 but kept getting the same error.
Your solution didn't work for me but I came up with an alternative that did work.
 On #5 I substituted the actual directory name in it's place. Instead of
"%SystemRoot%" I entered
"C:\Documents and Settings\All Users"
The Error went away and I'm now able to install and uninstall without problems.
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could also be Windows Installer trouble .. Reinstalling the Windows Installer