My database keeps crashing on startup how can i repair it without it running?
I take it you are using REPAIR TABLE by hand.
I also take it your are doing an automatic table repair for MyISAM. (You have to remove  or comment out the option of my.cnf to disable automatic MyISAM table repair).
You can actually repair the table without using MySQL but mysqld cannot be accessing it. How?
You have to use the offline utility myisamchk
Suppose you have the following

datadir is /var/lib/mysql
database is mydb
table is mytable

The table files would be

/var/lib/mysql/mydb/mytable.MYD
/var/lib/mysql/mydb/mytable.MYI

You can repair it with something like this
cd /var/lib/mysql/mydb
cp mytable.MY[ID] /tmp
cd /tmp
myisamchk -r mytable.MYD mytable.MYI
cd /var/lib/mysql/mydb
mv mytable.MY[ID] ..
mv /tmp/mytable.MY[ID] .

Afterwards, you can either login to mysql and do this
mysql&gt; flush tables;

or restart mysql
service mysql restart

Give it a Try !!!
UPDATE 2014-01-08 15:46 EST
Based on the last comment

Hi Rolando, It is an Linux OS Virtual Machine. 2 Intel Xeon Core 2048 Mbyte Memory. The tables are MyISAM. I will post the rest off the data in a sec (it's hard because it keeps crashing remember)

I would stronly recommend that you get more memory. Why ?
MyISAM caches index pages to the MyISAM key buffer. MyISAM does not cache data. The mysqld process defers all data caching to the OS. That can be a little dangerous for all open MyISAM tables in a low memory DB Server.
A MyISAM table keeps a count of the number of times a file handle has been open against it. When MySQL is down, a MyISAM table with a nonzero file handle count is considered crashed.
Although I provided the answer to the question in fixing a crashed a MyISAM table without mysqld running, you have a bigger problem with a 2GB VM. It should be more like 8GB. You should also run mysqltuner.pl against the VM by doing this:
# wget mysqltuner.pl
# perl mysqltuner.pl

You can then learn if /etc/my.cnf is underconfigured.