I don't edit DFLW or TFD but...
Is it possible that the defaultdir string may be a cause?
In scrkeys.ini
Code:
//single tab seperated
default 2
defaultdir D:\Program Files\Microsoft Visual Studio\MyProjects\DeSCR
defaultmask *.def;*.pt?;*.aip;mislist.txt;*.adm;
DF1 0x04960552
C4/DF2/DF3/TFD 0x01234567
BHD/TS/JO 0x2A5A8EAD
JO beta demo 0xABEEFACE
Could changing to the current DeSCR directory fix it?
For Example:
C:\Program Files (x86)\NovLogic\DeSCR