Tradelink Web Install Signature from existing iTVS4 Posted on 02/03/2021 by yuk Sign-in Web Tradelink first. More > Signature Key Management Choose file > Locate iTVS4 folder > Under Sec\Out find TLxxxxx date is 25-Feb-2021 e.g. : C:\iTVS4\Sec\Out\TLxxxxxx.p12