I cannot comment on methods used to 'truncate' the file to make the historical transaction count less than 10,000. Make a backup prior to trying it!!!!

Adagio did not remove the capability for multi-select, only limited it's capability if transactions exceeded 10k. The reason for implementing this in Adagio was due to other issues surrounding multi-select on databases that were this large in QIWIN. The easiest thing to do to prevent similar issues occuring in Adagio was to implement this limit until a solution could be found.

QIP DOS version 6.5A does not have this limit. People who have upgraded to Adagio from the DOS product would be able to remove multiple transactions from history using the DOS product.

Alternatively, depending on the purpose for retaining your historical transactions in the first place, you could:
1. Make a good backup of your data
2. create a new folder
3. put a copy of your Invoices and AR data into this folder
4. remove or rename the QIHIST*.* files in your live data

The next time you post in Invoices, it will create new history files. Before your new transactions reach the 10k limit, you can implement regular procedures to multi-select and remove the unwanted history. When you need to look up historical transactions (or report on them) you can just point Invoices to the newly created folder's 'old' dataset!

Hope this helps!

Take care,