DLL Trouble

Hello once again FASM experts,

I am here yet again with another problem. This time i'm trying to figure out DLL's and i'm having a bit of trouble with my example. It seems to compile fine and so does the app I create with it. The problem is, once I run my app, Notepad does pop up, but so does a Microsoft error asking me if I want to report my error. What could be the problem? Here is is my DLL and App in full:

ShellX.dll:

Code:

format pe gui DLL
entry DllMain

include 'win32a.inc'

section '.data' data readable writeable

a db 'notepad',0

section '.code' code readable executable

proc DllMain,hinstDll,fdwReason,lpvReserved
mov  eax,1
ret

Shell:
invoke ShellExecute,0,0,a,0,0,5
[color=red]ret[/color]
endp

section '.idata' import data readable

library shell32,'shell32.dll'

import shell32,ShellExecute,'ShellExecuteA'

section '.edata' export data readable

export 'ShellX',Shell,'Shell'

section '.reloc' fixups data discardable

Notepad.asm

Code:

format pe gui
entry Test

include 'win32ax.inc'

section '.code' code import writeable readable executable

library ShellX,'ShellX.dll'

import ShellX,Shell,'Shell'

Test:
invoke Shell
ret

EDIT: Nevermind. I have it fixed. I forgot to put "ret" under "Shell:".