Restoring the GCF context menu in Windows 10
When Scream! is installed, it adds a number of items to the Windows explorer context menu – the menu that appears when you right-click on a GCF file – including the “View with Scream” option.
There have been a few reports of this facility being broken. In these cases, right-clicking on a GCF file will produce a menu with the normal Scream context menu items missing.
This document describes a procedure by which the missing context menu items can be restored on a Windows 10 PC.
The procedure involves clearing any existing file association entries from the Windows registry and then re-registering the library (dll) that implements the menu items.
Click the Start button and, in the Search Programs and files field, type cmd. When the program is found, right-click on it and select Run as administrator.
The User Account Control dialogue should appear, asking whether to allow Windows Command Processor to make changes to your device - click yes.
Change directory to the folder where Scream is installed. For example, if Scream is installed under Program Files (x86), enter the commandcd "C:\Program Files (x86)\Guralp Systems\Scream4.6"
Enter the command regsvr32 /u gcfmenu.dll and click in the resulting confirmation window.
Enter the command assoc .gcf=:
Enter the command regsvr32 gcfmenu.dll and click in the confirmation window.
Locate a .gcf file and right-click on it. You should now see the normal Scream context menu entries, as shown below: