Inconsistent error -Weird

[henry]

Hi, for many, many years we have been using a large, complicated old DOS accounting program -no source code available. It runs in a windows 8 PC. Now suddenly when the password windows open it shows a “utility file missing” message and closes with any key. It has become unusable. The message seems to be generated by our accounting program.

This is a BIG problem.

Here is the weird part: I downloaded latest vDos to a windows 10 laptop and copied the accounting program and data (DBF) to it for backup and testing. It opened Ok several times. We decided a power failure had damaged or erased a windows file in the W8 PC and scheduled it for a reinstallation. A few days later I opened the copy on the W10 laptop and now the error appears there.

The only visible change in the W10 laptop (I know its irrelevant) is that the direct access logo waas the black “C” an it has changed to the nice blue modern vDos logo.

Any ideas?

[henry]

Forgot to say clearly that, off Corse, the accounting program runs in the W8 PC using vDos.

[Jos]

Indeed strange that in time the program comes with a missing file error. Perhaps it doesn’t find some license or activation file, while ignoring that for some time first.

Start vDos with the log option (….vDos.exe /log), the generated vDos.log file will hopefully show what’s actually missing.

The black “C:\” changed to the blue logo with version 2018. The old one can however still shown up after updating vDos because of Windows icon cache.

Jos