--- a/windows.rst Sat Feb 27 00:01:01 2010 +0200
+++ b/windows.rst Sun Feb 28 23:03:35 2010 +0200
@@ -1,5 +1,20 @@
-*- outline -*-
+* Determining windows version.
+
+Run winver.exe: <Win> + R winver <RET>.
+
+Or type: <Win> + <Break>.
+
+Under cmd.exe use built-in command ver.
+
+For Win 2000 and upper check registry key:
+
+ cmd> reg query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion" /v CurrentVersion
+
+To check 32/64-bit OS use PROCESSOR_ARCHITECTURE env var (it has such values:
+x86, AMD64, IA64).
+
* XP.
** Check system files integrity.