This guide assumes you want to move the whole of VPOP3 (including the message store) to a new folder on the same PC

1. Stop VPOP3
2. Stop PostgreSQL
3. Remove the PostgreSQL service
4. Delete the PostgreSQL programs
5. Move VPOP3 to the new folder
6. Reinstall VPOP3

Go to Control Panel → Administrative Tools → Services, and stop the 'VPOP3 Email Server' service

Go to Control Panel → Administrative Tools → Services, and stop the 'PostgreSQL-VPOP3' service

At a command prompt, navigate to your VPOP3 directory, then the pgsql\bin directory under that

Run pg_ctl unregister -N “pgsql-8.3”

If this doesn't work, run

Run pg_ctl unregister -N “PostgreSQL-VPOP3”

Move the VPOP3 folder and ALL sub-folders to the new location

At a command prompt, navigate to your new VPOP3 directory, then the pgsql\bin directory under that

Run g_ctl register -N “PostgreSQL-VPOP3” -D f:\vpop3\pgsql\data -U postgres -P vla8Pi4cluwrouDiERiU

Reinstall VPOP3 into the new location