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 my case it was another application that caused the problem. Not Notepad++. To others who encounter this problem, you can diagnose it by first deleting all files in C:\Documents and Settings\UserName\Local Settings\Temp so that you'll be able to find the bitrock_installer.log easily when you try installing postgresql again and view the instructions in it. Changing the (Default) key in the HKEY_CLASSES_ROOT, .vbs section of the registry to VBSFile solved it.