Say I have a small component drawn out and this one small component is used in 100 other drawings. 

Soon after I have put this into 100 different sheets  I realize one line in the component is .1" too short. 

Now say this were a block, or some sort of reference. Is there a way that if I changed the main file "component.dwg" that it would automatically change the component in every file it is used in?

I didn't actually make this mistake yet but someone is bound to eventually so I thought I would start doing it this way, if at all possible, to prevent any issues in the future. 

I use AutoCAD LT 98 but if this version cannot do it I have 2010 readily available. 

Please let me know if there is already a post on this or if you have a suggestion... or you know this simply cannot be done.

Thank you,

Dan

Is there a way to make these X-refs available for edit or is the whole point of xrefs to avoid editing a particular piece in each specific drawing?

I only ask because sometimes there is the same component but a different view needed for what I do (electrical components). 

Sometimes I'll need the top view and other times I'll need the rear view to show where wires go into the connector. Right now I have each view drawn together and saved in one file.  I was going to just save the one file as the respective part number but I'm unsure how to handle the different views needed. Is there a way to cut, crop or edit somehow these xrefs so I can use only one part of the xref?

Thanks in advance,

Dan