1. make xnviewmp the default image program.
2. rename a file to ".jpg (which is, Unicode Character 'FULLWIDTH QUOTATION MARK' (U+FF02))
3. Double click and try to open the file, or just run from the cmd:
Code: Select all
D:\>""C:\Program Files\XnViewMP\xnviewmp.exe" ".jpg
Other programs have no issue to open this file, such as mspaint.exe etc.
You can actually open the image through xnview browser mode. Just that you can't directly open the file.