Whats deference between *.VLX and *.LSP

I am creating a menu containig some lisps, and facing a problem in AutoCAD, the problem is

AUtoCAD becomes slow?

I think that because of Lisps which i attached to menu, So

Is there a deference between *.LSP and *.VLX in loading?

Thanks

From the AutoDesk website.

"FAS and VLX files are compiled AutoLISP® files that were created with Visual LISP®. FAS files contain a single compiled AutoLISP routine, whereas VLX files contain multiple routines.

Refer to the Visual LISP documentation for more information about how to create FAS and VLX files."

Thanx Remark

but is the type of lisp (*.VLX and *.LSP) make AutoCAD bocomes slow?

No, they shouldn't - .vlx and .fas files may be optimised to make them even quicker than LISP.

Is it possible to create a compiled version of an VBA file also?

I thought you could compile it as a DLL, see here:

http://msdn.microsoft.com/en-us/library/aa189867%28office.10%29.aspx

Thanx

I'll convert *.lsp to *.vlx and see.

Is DLL better and faster than LSP or VLX