a. block library, symbol library, content library
  b. Block, Attribute, Insert, Design Center, i-Drop, Standard, Xref, Dialog Box, Category, Slide, Slide Library, Tool Palette, Mutilple Insert 
  c. general consideration
    c1. Insert
    c2. manipulate:
      c2.1 add
      c2.2 delete
      c2.3 update
      c2.4 import to library, batch
      c2.5 export, batch
      c2.6 print out contents of your libraries: name, preview image (picture)
    c3. Parameters: scaling (or use DIMSCALE), elevation, thickness, rotation, explode, mirror, layer & color properties.
      c3.1 Scale
        c3.1.1 fixed scale
	c3.1.2 scale in current drawing, DIMSCALE
	c3.1.3 scale in some setting (LDT.Perference)
	c3.1.4 viewport (PaperSpace/Layout)
    c4. attribute
    c5. with LISP/VBA
    c6. Standards
    c7. Preview
      c7.1 zoom/pan
    c8. Description
    c9. Group(Category)
    c10. Multiple Insertion 
    c11. Working platform (ADT, MDT, LDT, and LT)
      c11.1 version 
    c12. Find and Replace
    c13. Standlone version, Network (Server) Version
  d. how to insert: 
    d1. from Insert button of Dialog box
    d2. toolbar
    d3. Drag_n_Drop from Design Center
    d4. Drag-n_Drop from Web page with i-Drop
    d5. Drag-n_Drop from Windows Explorer
    d6. pull down menu
    d7. Image Tile Menu
    d8. Tool Palettes
    d9. tablet menu (old time)
  e. add new block to library
    e1. for Dialog Box+Slide, create slide and add to slide library
    e2. Design Center
    e3. i-Drop
    e4. from entities (selection set) 
    e5. from block in current drawing
    e6. from dwg on the hard disk
    e7. batch import block
  f. Standard
    f1. Standard in a block
      f1.1 Block Name
      f1.2 Block Layer
        Layer Name, Color, LineType, LineWeight, PlotStyle, 
      f1.3 Block Color
      f1.4 Block LineType
      f1.5 Block Entity Type
      f1.6 Block in Block
      f1.7 Block Attribute
      f1.8 Block Text
        f1.7/8.1 Text Style
    f2. Standard when a block insert into a drawing
      f2.1 Insert Layer
      f2.2 Insert Color
  g. Design Center, DC 
    g.1 thumbnails
    g.2 BLOCKICON command 
    g.3 ADCNAVIGATE
    g.4 ADCENTER
    g.5 
Adcenter without AEC module loading? 
From: Bill Glennie [Autodesk] (bill.glennie@autodesk.com)
Subject: Re: Adcenter without AEC module loading? 
Newsgroups: autodesk.aec.arch-desktop3
Date: 2001-10-31 15:09:49 PST 
Doug - you can delete this key:
HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk\AutoCAD\R15.0\ACAD-12:409\AutodeskApps\AcadDC\History\DesignCenter\Last State
This will force the Design Center to open in the default state, in the Open Drawings view, and the key will be recreated.
    g.6 from menu: ^C^Cadcenter;adcnavigate;C:/Test/test.dwg/xrefs;
    g.7 Design Center Online (AutoCAD 2004)
      g.7.1 custom Design Center Online to my web site ?? 
Cleanup the DC Online blocks
From: Patrick EMIN (myemail@club-internet.fr)
Subject: Cleanup the DC Online blocks 
Newsgroups: alt.cad.autocad
Date: 2003-05-21 12:54:27 PST 
This LISP program erases the hyperlink tooltip attached to blocks definitions inserted from the Design Center Online in AutoCAD 2004 and renames the blocks keeping only the "significant" part of the name. For example, the block "http...webservices.autodesk.com.jsp.dco.search.preview.symbolXmlGen.jsp.key.21758.40X60_BATHTUB_PV" would be renamed "40X60_BATHTUB_PV"
Download the demo version:
http://www.CADxp.com/download/effacer_hyperliens_demo.zip (10Ko)
The demo version has the following limitations:
1/ the suffix "renamed by www.CADxp.com" is appended to renamed blocks
2/ after the program terminates, you are sent to http://www.CADxp.com/goodies, where you can purchase the full version
-- 
                  /////
               (o)-(o)
  ---ooO---(_)---Ooo--------------------------
Patrick EMIN http://www.CADxp.com/goodies
The french CAD portal
    g.8 
Manipulating AutoCAD Design Center
    From: Ben Rand (Ben_Rand@email.msn.com)
Subject: Re: Manipulating AutoCAD Design Center 
Newsgroups: autodesk.autocad.customization.vba
Date: 2001-07-16 10:12:04 PST 
Hi Monica,
I've been hammering away at this for awhile. Here's what I've learned so far.
You can open and control what DesignCenter opens to using:
Sub GetDC(strPath As String)
    ThisDrawing.SendCommand "adcnavigate" & vbcr & strPath & vbcr
End Sub
If you send in a string including just the path it takes you to that folder,
i.e.
    GetDC "c:\my projects
Send in a string including the path and a drawing name (don't forget the .DWG) it takes you to that drawing, i.e.
    GetDC "c:\my projects\my drawing.dwg"
Send in a string including the path, drawing name and "content level" to drill to that content in the drawing, i.e.
    GetDC "c:\my projects\my drawing.dwg\blocks"
I know SendCommand isn't a preferred way of doing things but this is quick and easy and it works. Hope this helps,
Ben Rand
LeadenSky Consulting
Salt Lake Community College
    g.9 
Remember of DesignCenter state
Topic: Remember of DesignCenter state  Message: 2 of 5  
From: Udo Hübner 
Date: Oct/04/03 - 19:36 (GMT) 
Systemvariable ADCSTATE (undocumented) 0 = not visible, 1 = visible
Topic: Remember of DesignCenter state  Message: 4 of 5  
From: Jürgen Palme 
Date: Oct/05/03 - 08:20 (GMT) 
That's not what I'm looking for. ADCSTATE (I know this variable and it IS documented in the online help) shows me the *current* DesignCenter state in my current AutoCAD session. What I need is the place where is stored whether the DesignCenter *was* (in my last AutoCAD session) opened or closed. I other words: Assuming my DesignCenter is visible and I close AutoCAD. The next time I launch AutoCAD the DesignCenter will be visible. On the other hand if the DesignCenter is closed before leaving AutoCAD, in the next session the DC will be deactivated. Whereform does AutoCAD know (while starting) whether the DC *was* ON of OFF? 
Thanks anyway 
Juergen 
  
Topic: Remember of DesignCenter state  Message: 5 of 5  
From: Autodesk\ 
Date: Oct/05/03 - 14:11 (GMT) 
It is now saved in the file FixedProfile.aws found in your Support\Profiles folder. C:\documents and Settings\
\Application Data\Autodesk\AutoCAD 2004\R16.0\enu\Support\Profiles. Check for Visibility flag in DesignerCenter node:
Name="DesignCenter" Style="46" Opacity="100" Visible="0"/>
Note: be very careful. This is not a customizable file and no support is provided if you mess it up.
Thanks,
Misha
 
  h. i-Drop
    h.1 Publish to Web command 
  i. Dialog Box, Slide, Slide Library
    i1. Slide Creation
    i2. Slide Library
  l. Tool Palette (TP)
  m. Xref
  n. make block unexplodable
    a.) training
    b.) reactor
    c.) include a couple of constant attributes in the block. One has a tag named "DO_NOT_EXPLODE" and the other is "UNDO_NOW". the value of each is left blank. 
    d.) MINSERT 1 1
    e.) training REFEDIT
    f.) UNDEFINE
    g.) how about LT
  o. Links:
    o1. SymblMan 6.0 from DotSoft
    o2. BlockWerx
    o3. Block Libraries in AutoCAD
    o4. BlockMan
        BlockViewer
	MLIB Light 3.2
    o5. Block Controller
  p. 3D Block Library, 
    p1. multiple preview pictures
  q. Difference Fields: Mechanical, Landscape, Civil, Kitchen, Interior, People, Tree, Pipe,