By the way, where does mt4 store the existing HST file that is used for a live chart? For example, if I have a live account with a M5 chart open and I look through the available data folders, I do not see a M5 HST file with a recent modified date. Where is the actual file? I ask I want to backup and import that HST file to a new account. Thanks!
Under the history folder, you should see a number of directories which correspond to the server connections that the broker has (eg. FXCM Demo). This is where the HST files are stored for the currently connected server.