Installation of CAD plug-ins and automatic loading of DLL and ARX

1、 Modify the registry to add cad Of “ Support file search path ”, With cad2020 For example ：

HKEY_CURRENT_USER\SOFTWARE\Autodesk\AutoCAD\R23.1\ACAD-3001:804\Profiles\<< Unnamed configuration >>\General\ACAD

2、 take acad.lsp Document and acad.rx Package the files into the installation package .

3、 When the installation is complete, it will acad.lsp Document and acad.rx The path of the file is added to the registry value .

4、 About lsp file ：

(setvar "SELECTIONEFFECT" 0)
(setvar "SECURELOAD" 0)
(setq filepath (findfile ".dll"))
(COMMAND "NetLoad" filepath)

(setq filepath (findfile "xxx."))
(COMMAND "NetLoad" filepath)

5、 About rx file

stay rx The file only needs to list what needs to be loaded arx File name + Suffixes are enough ：

xxx.arx

6、 Be careful lsp and rx Use of the file name of the file .