AV File Handle problems in iterative loops -- Avenue Coding

[Keven Bennett]

Hello, 

 I'm writing Avenue code to run an iterative spatial model in
 which 6 scripts are called in a 'for' loop that iterates several
 times. 

 In the course of doing the needed grid algebra, each script
 generates numerous temporary grids that I am having
 difficulty getting rid of. The "temporary dataset" status of
 these grids does not help here as they are not deleted until
 the entire for loop is completed and the main script ends.
 This results in the loss of about a gig of disk space per year of
 iteration and I need to get rid of the temporary datasets just
 before each called scrpt returns contol to the main script.
 Forcing a delete using this method results in occasional "Not
 Owner of Directory" errors (I'm running this as administrator
 and at the end of the SAME script in which the grids are
 created (a sample snippet below). 

 '***create aGrid by map calculation 

 aSrcName = aGrid.GetSrcName 

 aFileName = aSrcName.AsFileName 

 '***more grid algebra processes 

 '***last non-cleanup, active line of script is here 

 if ( File.Exists( aFileName ) ) then 

 Grid.DeleteDataSet( aFileName ) 

 end 

 return TRUE 

 I have had nothing but problems with AV file handling
 problems and cant find a pattern to these error messages!
 Does anyone have any idea of a sure fire way to get around
 this problem???!!!!