The 'ALWIN' folder is version 8.1A of Adagio Ledger. If indeed you have version 9.0C from the \softrak\ledger directory installed, you should not be using both this program and the one in \softrak\alwin. In fact, the data is not compatible between 8.1A and 9.0C, so you might not even be running the current version. You'll need to determine what version of Ledger you are actually using.
The 'F' means that the first account is read in the case where a range of accounts is used. This happens for amounts as well as descriptions. If only one account is in the formula key, using ADGET or ADGETF doesn't matter.
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Regards,
Softrak Tech Support