Freeware(Open Source) : A Tool to update Metastock files with EOD Data. Read/Write/view contents of the Metastock files. Downloads updated quotes from Yahoo, writes/Appends new quotes to the Metastock files. DLL can be used as SDK. VB.NET
Showed promise, unfortunately yahoo EOD data downloads adjusted close, & the software crashes when you attempt to update an existing metastock dB when using google finance.
It has too much errors