Digiprog 3 V4.94 update error "List index out of bounds"

I bought Digiprog 3 v4.94 update software and followed the instruction to update my digiprog3 on WinXP laptop. But when run Digiloader1.exe file, the windows reports an error "List index out of bounds (-1)" (error screens taken below)

3 possible reasons:

1.You did not disable anti-virus program. Digiloader file was killed by virus.

2.His WinXP is not compatible with the digiprog3 4.94 update software. 

3. The update file is not complete. 

Solution:
Contact your dealer to check if your problem came with files,if yes,ask them to re-send the update file.

http://digiprog3digiprogiii.blogspot.com/2015/12/how-to-update-digiprog3-in-10-steps.html