diff --git a/doc/extcap.pod b/doc/extcap.pod
index c268acfacf..171e3a6dbf 100644
--- a/doc/extcap.pod
+++ b/doc/extcap.pod
@@ -29,13 +29,19 @@ called by the GUI in a row. In the following chapters we will refer to them as
 "the extcaps".
 
 Extcaps may be any binary or script within the extcap directory. Please note, that scripts
-need to be executable without prefacing a script interpreter before the call. To go deeper
-into the extcap utility development, please refer to README.extcap.
+need to be executable without prefacing a script interpreter before the call.
 
 WINDOWS USER: Because of restrictions directly calling the script may not always work.
 In such a case, a batch file may be provided, which then in turn executes the script. Please
 refer to doc/extcap_example.py for more information.
 
+When Wireshark launches an extcap, it automatically adds its installation path
+(c:\Program Files\Wireshark\) to the DLL search path so that the extcap library dependencies
+can be found (it is not designed to be launched by hand).  This is done on purpose. There should
+only be extcap programs (executable, python scripts, ...) in the extcap folder to reduce the startup
+time and not have Wireshark trying to execute other file types.
+
+
 =head1 GRAMMAR ELEMENTS
 
 Grammar elements:
diff --git a/docbook/wsdg_src/WSDG_chapter_capture.adoc b/docbook/wsdg_src/WSDG_chapter_capture.adoc
index 81d45b9e55..01a4eea849 100644
--- a/docbook/wsdg_src/WSDG_chapter_capture.adoc
+++ b/docbook/wsdg_src/WSDG_chapter_capture.adoc
@@ -71,6 +71,12 @@ IMPORTANT: *Windows Users* Because of restrictions directly calling the script m
 In such a case, a batch file may be provided, which then in turn executes the script.
 Please refer to <<ChCaptureExtcapWindowsShell>> for more information.
 
+When Wireshark launches an extcap, it automatically adds its installation path
+(c:\Program Files\Wireshark\) to the DLL search path so that the extcap library dependencies
+can be found (it is not designed to be launched by hand).  This is done on purpose. There should
+only be extcap programs (executable, python scripts, ...) in the extcap folder to reduce the startup
+time and not have Wireshark trying to execute other file types.
+
 [[ChCaptureExtcapProcess]]
 
 ==== Extcap command line interface