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JohnrC123's avatar
JohnrC123
Copper Contributor
Nov 09, 2019

Update Blocking 16 bit app?

I have to use an old 16 bit program "Superbase" (a programmable relational database) in Windows 10, 32 bit. It loads ntvdm.

 

It's been absolutely fine until some time in the past month or so where I can no longer load a 'companion app'. It's a form designer. However, Superbase itself seems to run fine. 

 

When I try, the mouse cursor blinks, then nothing happens.

 

I've tried running as administrator and tried changing compatibility mode. I've also tried adding the executable to Avast Free Antivirus' white list, and disabled Avast shields (not convinced it actually does this) all to no avail. 

 

Could a Windows update have rendered this program unusable?

 

TIA for any help. 

 

Cheers

8 Replies

      • HotCakeX's avatar
        HotCakeX
        MVP
        Thanks, could you please type "winver" in RUN and tell me the version you see + OS build

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