301 redirect from html to php?

[kuroi]

No. You can do that.

As to why it's failing for you, you haven't provided any information about your Zen Cart, or your URL rewriting mod, or the rest of your .htaccess file, or even what the error is.

Might it be a "can't complete" type error because you're trying to redirect the page to itself?

[BillNally]

Sorry about that
I’m just finishing a new upgrade to our site but I need to get shot of a loads of old html. The site is now up to date on 1.3.9e and I added the code after a blank line to the existing .htaccess file.
The error without even going to a redirected page read....
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.

You lost me with the URL rewriting mod all I added was the line of redirect code

[kuroi]

OK. Let's take a step back. Why are you trying to redirect this URL? The old URL does not indicate the presence of html pages, just that you can a piece of code on your site that makes your php generated pages look as they're html.

You can stop this by turning off whatever SEO URL package you have installed.

[BillNally]

The original site was a large mix of html from before started using zencart and the more recent zen php. The upgrade is about ready to implement and I want to reduce the html work without throwing away the SEO

[kuroi]

OK. But what you're trying to replace there isn't html, it's a php link that's been re-written to look like HTML. So you're sending your browser round in circles, as you try to force it to a php page and your SEO URLs package rewrites it back to look like html, in what would be a never ending process if there weren't a server error designed to stop infinite loops.

[BillNally]

Is there a better way to do it without loss of seo or am I doomed to doubling up work with html

[kuroi]

That rewriting of the links to look like html pages is most like all that your SEO module is doing for you. So your question is contradictory.

Could you clarify what the ultimate "it" you're trying achieve is? If it's just about removing html pages that pre-date your Zen Cart, then you're attacking the wrong links.

Using SEO URLs does tend to create double links. One being what the SEO package generates and wants search engines to see and index, and the other the underlying dynamic link.