A folder in "my documents" cannot be scanned or deleted and i know not
from where it came.
Error message states:  cannot delete versionhelper.java

How do i delete it?

have you cecked the attributes on this folder?

open command window and type ' attrib /? '
Files and folders can be set with A - Archive used for backups S -
System and H - Hidden. If a file or folder has an S or H attribute
sometimes its hard to remove them.

What O/S version are you using?

I am using Win XP home!

When trying to delete it it says "file name invalid" but i have
renamed it to no effect.

sorry it says "directory name invalid" if that makes any difference.

You should run the disk checking program in windows, Scan Disk and/or
Defragmenter. If the folder structure is currupt, it could be prevent
you from deleting it.

Tried that, still can't delete it!

First you need to reboot into safe mode and log in as the
administrator.  Just because you have administrator status in XP Home
does not mean you are the administrator.  One of the oddities of XP
Home.

You get to safe mode by pressing the F8 key at startup before the XP
logo screen comes up.  It is a bit of a trick to press it at the right
time.  You then select safe mode from the menu and log in as the
administrator when it comes up.

Now that you are in control you will be able to delete that file.

You will want to use Explorer to find C:\Documents and
Settings\(insert user name here)\my documents

Try to highlight it and delete it.  If it gives you an error go on to
the next step.

When you see the versionhelper.java folder, right click and select properties.
Click on the security tab
Click on the advanced button
Click on the Owner tab
Highlight the Administrator account and check Replace owner on
subcontainers and objects.
Click OK
Click OK again
Now try to delete the folder.
If it works then you can log off and reboot normally.  If it comes
back you may have some spyware or virus that is putting that folder
there.  It is likely a program that is doing that.

Hope this helps!