text: when i close internet explorer i get application error referenced memory at 0x10048a63 could not be read. fix?   i would start with virus/spyware scans. be sure to update your virus definitions first. (always a good place to start and quick to do).   as you didn't mention your os i will assume you have windows xp. however, all instructions will still work, just slightly different menu options.  another quick attempt to resolve this would be to clear the temporary internet files and the history cache.  1. start internet explorer.  2. on the tools menu, click internet options.  3. under temporary internet files, click delete files, click to select the delete all offline content check box, and then click ok.  4. under history, click clear history, and then click ok.  5. clear the temporary internet files and the history cache. to do this, click clear history under history, click yes, and then click ok.  6. restart internet explorer.   next i would move onto toolbars (google toolbar, yahoo toolbar, hotbar, etc.) sometimes these plugin toolbars don't play nice with each other. they could also be corrupt or just poorly written. i'd remove them all and then reinstall only the ones your want. (sometimes spyware automatically installs toolbars on you)  1. close all open internet explorer windows. 2. open the control panel (click on start, control panel or start, run and type control then click ok) 2. select add/remove programs 3. select a toolbar listed and then click remove/uninstall. 4. repeat for each toolbar found and then reboot.   this issue can also occur as a result of a corrupt index.dat file used by internet explorer.  to remove the history folder 1. restart the computer.  2. use a different account w/admin rights to log on to the computer.  3. open windows explorer.  4. locate the c:&#92;documents and settings&#92;username&#92;local settings&#92;history folder for the username you normally use.  also - the local settings folder is a hidden folder. to view this folder, enable the show hidden files and folders option in windows explorer. to do this, click the tools menu in windows explorer, click folder options, click the view tab, enable the show hidden files and folders option.   5. right-click the history folder, and then click delete.  6. when you are prompted to confirm the folder removal, click yes.  7. close windows explorer.  8. restart the computer.  9. log on to the computer as you normally do 10. start internet explorer.  11. on the tools menu, click internet options.  12. under temporary internet files, click delete files, click to select the delete all offline content check box, and then click ok.  13. restart internet explorer.   lastly, i would try to scan for any corrupt files. there could be a corrupt dll or one replaced by another program which is being used by internet explorer.  1. click start, run, type "sfc /scannow" (w/out the quotes) 2. click on ok and follow the prompts. (you may need your windows cd for this) 3. when completed - reboot.  if this doesn't work there are even more steps you can take. however, one of the above steps should resolve it for you.