Any problem to artificially create long url to google not follow?

[webgp]

I saw a message that even with robots.txt file google store the links that appears in a indexed page but with no description.

I would like to artificially add some parameters to links that I would not like that google store even if google will not index these links.

[b]
Do you think that 4 parameters , something like , http://mysite.com/page.php?p1=1&p2=2&p3=3&p4=4 is enough to discourage google to even store these links?

Do you know if goggle see many long links in page and a few short links google can desist to follows all links of the page and instead to follow the desired links google follows no links at all?
[/b]

I’m optimizing my phpBB board , I decided to use mod_rewrite modifying the version of this mod,
http://www.phpbb.com/phpBB/viewtopic.php?t=68551

but instead of generic rewrite rule to transform all phpBB to html I decided to change only the pages that displays forum index and forum topics , for people that use phpbb,

I transformed

The link http://www.mysite.com/phpBB/viewtopic.php?t=1

is modified to

http://www.mysite.com/phpBB/viewt-1.htm

The link http://www.mysite.com/phpBB/viewtopic.php?t=1&start=10

is modified to

http://www.mysite.com/phpBB/viewt-1-10.htm

I made similar modification to viewforum.php page and did not change index.php page.

The remaining links I'm artificially adding some parameters to discourage goggle to follow these links.

I use mode rewrite only to anonymous users , when user login I disable mod_rewrite links.

[takagi]

With 3 or 4 parameters Google might still add the URL to the index (spidered or not). I think adding a PHPSESSIONID is an easier way to get this result.