Apache won't start: specified module could not be found

[barney]

Folk,

Apache 2.2.6 will not start on a WAMP machine, XP Media Center edition, 2.8G processor, 1G RAM.

When I go to the console and enter httpd, an error message is presented,

httpd: Syntax error on line 135 of C:/Program Files/Apache Software Foundation/Apache2.2/conf/httpd.conf: Cannot load C:/Program Files/Apache Software Foundation/Apache2.2/modules/mod_access.so into server: The specified module could not be found.

The module is there, in the specified location. If I comment out that line in httpd.conf, the start chokes on the next module specified.
ServerRoot is properly specifed.
I'm in the right directory - old DOS hand, so typing paths is not a strange beastie to me.

When I installed Apache, it did not create error.log or access.log, just the install.log, in the logs/ directory, so I can't get much info there.

Question I have - other than hel-l-l-l-lp - is whether Apache might be seeing a wrong version of mod_access.so? How can I check to see that I don't have an incorrect version.

Background.
I had Apache running on this box, but had several versions (1.3x, 2.0x, 2.2.2). I decided to clean house and uninstalled all versions, then installed 2.2.6. But I don't know that all the old files were uninstalled, and don't know if the .msi installer will overwrite them with newer ones by default. I kept all the old .conf files in a separate area, but don't know that the older files are suitable for 2.2.6.

'Preciate any help that might be offered.

Make a good day ...
... barn