To display the digital signature of an .exe, .dll, .sys file:
Right-click on "Properties" for the file whose digital signature you wish to see.
Select tab: Digital signatures
The Prim'X Authenticode certificate is included (and can be viewed). It is officially issued by THAWTE.
The certified timestamping is carried out by VERISIGN
(the only timestamping authority approved by Authenticode).