Démarrage impossible

Hello, i have installed drafsigt64.

It worked for 1 day. Since not start it I get a message that gives me a window DrafSigth stopped working. Search for a solution online. It is not, but I have the details on the problem
Appcrash ....

I tried to reinstall it, désintallant then cleaning the registry and files still on disk, but without success

I use W7 64 bit