PostgreSQL 9 install on Windows: “Unable to write inside TEMP environment path.”

Question

I am attempting to install PostgreSQL 9 (postgresql-9.0.3-1-windows.exe) on my WinXP machine and get the following error at the start:

Answer 1

In the temp directory, my bitrock_installer.log file had the following:

Executing cscript //NoLogo "C:\Users\MyUser\Local 
Settings\postgresql_installer_1b4eec8be6\prerun_checks.vbs"
Script exit code: 1

Script output:
Input Error: Can not find script file "C:\Users\MyUser\Local 
Settings\postgresql_installer_1b4eec8be6\prerun_checks.vbs".

Turns out that Windows has a symlink between the following directories:

• C:\Users\cpetrie\Local Settings\Temp
• C:\Users\cpetrie\AppData\Local\Temp

For some reason my "TMP" and "TEMP" user variables were referencing the "Local Settings" path instead of the "AppData" path. Changing this fixed my install issue.