Note
The Current Version displayed in Help -> About is 1.18.5.45.

Here the information extracted from the EXE file:

File name and path:     D:\PortableApps\PortableApps\_HDDExpertPortable\HDDExpert.exe
Product Name:           HDDExpert
Internal Name:          HDDExpert
Original Filename:      

File Description:       HDDExpert checks your hard drive health
Company:                KC Softwares
Legal Copyright:        KC Softwares
Legal Trademarks:       
Comments:               

File Version String:    1.18.5.45
File Version:           1.18.5.45
Product Version String: 1.0.0.0
Product Version:        1.18.5.45