I created a where used program (vb express 2010) about a year ago which does its job fairly well but is a bit slow.  It seems a bit silly to ask this question without posting all my code but I'll try to give a detailed enough rundown to see if anyone has any suggestions on how to speed it up.

Program background:

1- Get all assembly files within a specified folder (ie: Z:\SOLID WORKS)

*2- Loop through all assembly files and use docmgr to grab child components (single level down only)

3- for each child component write line to database in memory(assy#, parent#)

4- once done, copy to stored database

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1- after db is established (either through rebuilding it as per above, or by loading from saved db)

2- search through database to find where used

3- if user specified, take results and do whereused search on them etc to go right to the top level assy

#2 is where i'm getting my speed issues.  We currently have ~6500 assembly files and this update process takes about 20min to complete.  What scares me is when I started this program (we were win xp 64bit, now win 7 64bit) we had ~6000 assy files and the update would take 15min.  I don't want to get to the point where 2 years down the road with 8000assy files it takes 2h45min to complete.

with each returned assembly file path I have attempted to get the child components by 2 methods:

config = swDMDoc.ConfigurationManager.GetConfigurationByName(configName)

SubCompArray = config.GetComponents

&