PowerBasic 3.5 (for DOS) fails to access command.com

[marty0750]

Hi

Using PowerBasic 3.5. When I request to go to DOS prompt it fails

Menu

then

Fail command.com

vDos is installed thus:

C:\Source\vDos
from which vDos is launched

PowerBasic is installed thus:
C:\Source\PB
from which PowerBasic is launched

I suspect the file command.com is expected to be found in \Source or \vDos or \PB ?

How do we fix please...?

Marty

[Jos]

Programs normally just start the command processor, eventually verify its presence by a DOS API function.
PB 3.5 however tries to actually open the COMMAND.COM file, because that doesn’t exist vDos can hardly return a valid file handle.

Create a dummy COMMAND.COM file in vDos/DOS C: so PB will be satisfied.

Jos

[marty0750]

Jos thank you for replying.

Not sure if I follow what I need to enter. Tried this (complete path shown)

C:\Source\VDos\DOS\command.com (0 bytes for dummy?)

...does not work

Marty

[Jos]

I don't know what your vDos/DOS C: is.
You start vDos.exe in C:\Source\vDos. But DOS C: isn't the default C:\Source\vDos.
Then you wouldn't be able to start PB in vDos.

If DOS C: is Windows C:\Source (by USE), create COMMAND.COM in Windows C:\Source.
The size or content doesn't matter, PB only opens and closes the file.

Jos