Troubleshooting: Add section about false positive anti-virus reports.

Troubleshooting.md

@@ -38,6 +38,7 @@ Then to add it back :GenTocRedCarpet
 * [Location of configuration files](#location-of-configuration-files)
 * [I ran the program with "run as Administrator" and ...](#i-ran-the-program-with-quot-run-as-administrator-quot-and)
 * [Installation Issues](#installation-issues)
+    * [Installer and/or executables flagged as malicious/viruses](#installer-and-or-executables-flagged-as-malicious-viruses)
     * [Update Error!](#update-error)
     * [Update of application fails silently or with the installer crashing.](#update-of-application-fails-silently-or-with-the-installer-crashing)
     * [Missing VCRUNTIME140.DLL](#missing-vcruntime140-dll)
@@ -201,6 +202,36 @@ or other location chosen by you).
 # Installation Issues
 <!-- vim-markdown-toc Redcarpet -->
 
+<a name='installer-and-or-executables-flagged-as-malicious-viruses'></a>
+
+<!-- vim-markdown-toc -->
+## Installer and/or executables flagged as malicious/viruses
+We have had reports that Anti-Virus software such as:
+
+ - AVG Anti-Virus
+ - BitDefender
+
+can sometimes report that either one of our installers (e.g.
+EDMarketConnector_win_5.0.0.msi) or an executable therein is malicious in
+some manner.  This has invariably always been a false positive.  Microsoft's
+Windows Defender on Windows 10 never has any issue with any of our application
+files.
+
+The .msi files we distribute are built either on a trusted developer's 
+machine, or on GitHub itself (but then downloaded to a developer's machine 
+in order to upload as part of the GitHub release process) using
+[py2exe](https://github.com/py2exe/py2exe/).
+
+See discussion in [EDMC 5.0.0. Flagged at Malware by AVG Anti Virus #1058](https://github.com/EDCD/EDMarketConnector/issues/1058)
+for more details about the 'cause' of this, including links to py2exe 
+issues about it.
+
+If you're really worried about our executables, but feel you can still 
+trust our source code then you can always investigate
+[Running From Source](./Running-from-source).
+
+<!-- vim-markdown-toc Redcarpet -->
+
 <a name='update-error'></a>
 
 <!-- vim-markdown-toc -->