BUG
** This issue is addressed in ArcGIS 9.1 Service Pack 1 (SP1) **
Temporary folders with a prefix of SCH are getting created every time that a diagram is created or opened in ArcMap. These folders are not getting deleted properly.
This is a known issue.
Note: This issue is addressed in ArcGIS 9.1 Service Pack 1 (SP1).
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