The following bug has been logged online:

Bug reference: 1961
Logged by: Tobias Lana
Email address: t.lana (AT) univw (DOT) uni-saarland.de
PostgreSQL version: 7.03.02
Operating system: Win 2000 Server
Description: Can not deinstall PostgreSQL
Details:

Tried to update Version 7.03.02 to 8.0.1.1.

During the deinstallation of 7.03.02, following popup came up:

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Error 1327, Invalid Drive W:
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and the deinstallation aborted.
How can I deinstall the old driver ?

Best Regards
tl

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Tobias Lana wrote:
1. Is this the ODBC driver you are talking about?

2. I take it you used to have a drive W: but now don't.
If you use something like "SUBST W: C:\some_folder" can you uninstall?

3. If all else fails, I believe you can delete the ODBC driver by
removing the files and removing the registry keys by hand.
http://archives.postgresql.org/pgsql...5/msg00018.php

HTH
--
Richard Huxton
Archonet Ltd

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