Determine the Windows version (without any API call)

You can use the GetVersion or GetVersionEx API functions to determine which Windows version the application is running on. However, there is a much simpler solution, based on the fact that Windows NT creates an environment variable named “OS” while Windows 95/98 don’t. So you can quickly discern between Windows 9x and NT using this one-liner:

' the OS environment variable returns "Windows_NT" or a null stringisWindowsNt = Environ$("OS") <> ""

Windows 2000 (at least the RC1 version of the Advanced Server edition) does support the OS environment variable, but it returns the string “Windows_NT”, so this variable can’t be used to discern Windows NT and 2000. However, Windows 2000 apparently creates more environment variables than Windows NT, so you can use any one of them, for example the PROGRAMFILES variable:

If Len(Environ$("OS")) = 0 Then    Debug.Print "Windows 95/98"ElseIf Len(Environ$("PROGRAMFILES")) = 0 Then    Debug.Print "Windows NT"Else    Debug.Print "Windows 2000"End If

IMPORTANT: As mentioned above, this code is based on tests performed on Windows 2000 Advanced Server Release Candidate 1. It is possible that the Professional edition of Windows 2000 behaves differently, and also that the final version of Windows 2000 will load a different value in the OS environment variable, thus making the above code unnecessary.

Share the Post:
Share on facebook
Share on twitter
Share on linkedin

Overview

The Latest

homes in the real estate industry

Exploring the Latest Tech Trends Impacting the Real Estate Industry

The real estate industry is changing thanks to the newest technological advancements. These new developments — from blockchain and AI to virtual reality and 3D printing — are poised to change how we buy and sell homes. Real estate brokers, buyers, sellers, wholesale real estate professionals, fix and flippers, and beyond may

man on floor with data

DevX Quick Guide to Data Ingestion

One of the biggest trends of the 21st century is the massive surge in internet usage. With major innovations such as smart technology, social media, and online shopping sites, the internet has become an essential part of everyday life for a large portion of the population. Due to this internet

payment via phone

7 Ways Technology Has Changed Traditional Payments

In today’s digital world, technology has changed how we make payments. From contactless cards to mobile wallets, it’s now easier to pay for goods and services without carrying cash or using a checkbook. This article will look at seven of the most significant ways technology has transformed traditional payment methods.