In VulnDetect the displayed version number is Please report version.

I copied the EXE also to the folder E:\VulnDetect_Special_Files
Tell me if you need a screen shot of the Help -> About window.

Here the information extracted from the EXE file:

File name and path:     E:\VulnDetect_Special_Files\Arc_1.1.0.18727\Arc.exe
Product Name:           Arc
Internal Name:          Arc.exe
Original Filename:      Arc.exe

File Description:       Arc Update
Company:                Perfect World Entertainment Inc
Legal Copyright:        Copyright(C)2010. Perfect World Entertainment Inc.All rights reserved.
Legal Trademarks:       
Comments:               

File Version String:    1.0.0.1
File Version:           1.0.0.1
Product Version String: 1.0.0.1
Product Version:        1.0.0.1