Explicitly mention Windows 7 and 19c

Author: cjbj

INSTALL.md

@@ -785,6 +785,8 @@ Download the free 64-bit Instant Client **Basic** ZIP file from
 [Oracle Technology Network][25].  If your Node.js architecture is
 32-bit, then use the [32-bit Instant Client][26] instead.
 
+Windows 7 users: Note that Oracle 19.3 is not supported on Windows 7.
+
 - Unzip the ZIP file into a directory that is accessible to your
   application.  For example unzip
   ` instantclient-basic-windows.x64-19.3.0.0.0dbru.zip` to
@@ -1511,6 +1513,10 @@ If creating a connection fails:
 - If you got *DPI-1047: Cannot locate an Oracle Client library*,
   then review any messages and the installation instructions.
 
+- If you got *DPI-1072*, then review the installation requirements.
+  Node-oracledb needs Oracle client libraries 11.2 or later.  Note that 19c is
+  not supported on Windows 7.
+
 - Does your Node.js architecture (32-bit or 64-bit) match the Oracle
   client library architecture?  Run `node -p 'process.arch'` and
   compare with, for example, `dumpbin /headers oci.dll` (on Windows),