Problems during installation sometimes occur due to failed un-installation of previous versions of NEST Trader in your system. Please read this below given solution and follow the exact process to install INFINI-TRADER on your system. Please click the below link to view the solution

IMPORTANT: If you have NEST Trader installed from another vendor, we would advise you to install INFINI-TRADER in another hard drive. 

Eg: If you have existing NEST Trader installed in C: drive, please install INFINI-TRADER in D: or E: drives.