When creating a torrent of files within a folder in Windows XP an extra file maybe added to your torrent called "thumbs.db";
This additional file may cause problems with peers getting stuck at 99%.
The solution to this is to either delete this file prior to creating the torrent ~ or disabling the creation of it in the first place.
So here's the solution :
Stop Windows from saving the thumbnail cache (THUMBS.DB)
For Windows XP Only
Windows XP, by default, shows the thumbnails view of certain folders, whether you want it to or not. Even if you choose Details (or some other view) as your default by going to Tools -> Folder Options -> View tab and click Apply to All Folders, Explorer may still revert back to the clumsy Thumbnails view. It does this for any folder in which it finds the THUMBS.DB file; naturally, if you delete this file, it won't happen again.
The problem is that Windows seems to repeatedly recreate the THUMBS.DB file automatically. Here's how to stop this from happening:
In Explorer, go to Tools -> Folder Options or open the Folder Options icon in the Control Panel.
Choose the View tab, and tick the Do not cache thumbnails option.
Click OK.
You can also change this setting in the Registry:
Open the Registry Editor (regedit.exe).
Navigate to: HKEY_CURRENT_USERSoftwareMicrosoft
WindowsCurrentVersionExplorerAdvanced.
Double-click the DisableThumbnailCache value, or go to Edit -> New -> DWORD value to create a new value by that name.
Enter 1 for its value.
Click OK and close the Registry Editor when you're done. You'll have to log off and then log back on for this to take effect..
