DraftSight is no longer running

Hello, I use DraftSight V1R3.1 (64B) Windows 8 for several days. As of yesterday, he does not want to open and displays the following message : "The procedure entry point not found ... In the dynamic link library C: \\ Program Files \\ Dassault Systemes \\ DraftSight \\ bin \\ FXCommands_3.05_9.tx"

 

   

 

 

I did a Windows restore an earlier date when everything worked perfectly : no result

I uninstalled and reinstalled DraftSight : no result either

Thank you for helping me and sorry for my bad english