Windows ODBC Driver versions for Netezza

I found the following in the source code:

This is version 07.05.0001. For those that don't know or don't recall
how the versioning works, the major and minor number track the latest release of PostgreSQL that the driver is expected to work with. The revision number is a bit more complex. The first two digits are the version number, where even numbers are development versions, and odd are release. The last two digits are the build number.

In other words, this driver is build 01 of development version 00, and is expected to work with PostgreSQL 7.5dev. :-) The leading zeros are an ODBC thing...

I guess one cannot get any better answer than this :)

[Not really an answer as I'm just stating the obvious but I don't have enough rep to comment.]

The four driver files are the ODBC driver, the JDBC driver, and the 32 and 64-bit OLEDB drivers. The ODBC driver is of course the correct one but there's a small check box in one of the installer dialogs which allows you to choose 32-bit and/or 64-bit. Did you select the correct one?

I've just tried this on Windows Server 2012 and Windows 7 and both work exactly the same for me without any extra steps. The driver I have is called nsqlodbc.dll, version 7.0.0.27274, in C:\Windows\System32 (and I also have a 32-bit version in C:\Windows\SysWOW64). I can connect from both the 32-bit and 64-bit ODBC Data Source Administrator tools although I got my password wrong several times so that's certainly worth checking.

Have you also checked that the advanced options are the same, SSL for instance?

Possibly there's a security setting on your Server box that's preventing the connection but on 2012 Server there didn't appear to be anything by default.