Try this in your app.reg
Code:
REGEDIT4
[HKEY_LOCAL_MACHINE\Security\Shell\StartInfo\Start\CHTEditor.lnk]
"Icon"="\\Windows\\icon.png"
[HKEY_CURRENT_USER\Software\HTC\Manila]
"CHTE.Path"="\\Program Files\\CHTEditor\\CHTEditor.exe"
(double \\ in your filename...)