Run postgresql pg dump automatically from Access

Hi,

i have a command line in windows cmd:

pg_dump -w 1234 -U postgres -C -f  C:\Temp\sample_backup AccessLog -w 1234

I want to somehow create code, which will take variables from Access like username, password, and current date, pass these variables into batch or VB or other file and run automatically above code.

How can i achieve this?

Please help,
Jacek