Errors in your registry are one of the common causes for incorrect file associations on your windows system. It is highly recommended that you check your registry for file association errors (will also check for any other registry errors).
The BTR file type is primarily associated with 'AviSys' by Jerry Blinn.
AviSys is software for bird watchers (.avi file).
Add-on software also allows the program to catalog butterflies (.btr files), dragonflies (.drg files), and reptiles (.hrp files).
Cannot access BTR files on windows?
When windows gives you an error message saying that it "Cannot open BTR files", this means either:
A. You need to identify a program that can open the file B. Or your registry may be damaged
RECOMMENDED:
In both cases it is strongly recommended that you run a free scan for registry errors.
FrontPage (Binary-Tree Index) by Microsoft Corporation The identifying characters used for this association are - Hex: 1C 01 00 00
'Identifying characters' used on FILExt.com are provided by Marco Pontello from his TrID database
Technical data
To view technical data on file-extension BTR click this link to expand/hide the additional area.
Program Name and MIME Type Info for File Extension .BTR
FILExt has been given permission to display a Program Name/MIME type database collected by Anthony R. Nemmer. Some of this data has already been included into the main FILExt database. Those entries which have not yet been incorporated are displayed below.
Program NameMime TypeAddress Book FileFound in Multiple GNU/Linux PackagesMS Frontpage-Related FileSaleMaker Plus FileSpeech Master File (Btrieve Form?)
