Mercuro IMS Client support for 64 bits OS

Since the 4.0.1594 release, there is no more issues when using Mercuro IMS Client on 64 bits systems (XP, Vista or Windows 7 64 bits editions). The application and the installer have been enhanced to properly indicate the 32 bits nature of the application. Now the WoW sandbox starts with the right architecture. Just to let you know...