No errors, seems to be working on my system but very flaky on the other one, most times the body of the email will be blank.
But just now on mine, I am getting:
"The command line argument is not valid. Verify the switch you are using." This seems to happen when I have outlook open, but not when it is closed.



>>Hi, I had a ShellExecute cmd working under XP to instantiate the default windows email program whcih was outlook express. But in Vista it doesn't seem to be working. Can you advise?
>>
>>#DEFINE SW_SHOWNORMAL 1
>>#DEFINE SW_SHOWMINIMIZED 2
>>#DEFINE SW_SHOWMAXIMIZED 3
>>
>>t1="mailto:someguy@hotmail.com?Subject=" +title+"&Body="+CHRTRAN( contents, [&], [+] )
>>
>>lcFileName=t1
>>DECLARE INTEGER ShellExecute IN shell32 ;
>> INTEGER lnhwnd, STRING lcOperation, ;
>> STRING lcFile, STRING lcParameters, ;
>> STRING lcDirectory, INTEGER lnShowCmd
>>lnRes = ShellExecute( 0, "open", lcFileName, "", "", SW_SHOWMAXIMIZED )
>
>What is the value of lnRes?
>
>
>What that gives to you?
>
>

>lnRes = ShellExecute( 0, "open", lcFileName, "", "", SW_SHOWMAXIMIZED )
>
>fl_error = (lnRes >= 0  AND lnRes < 32)
>DO CASE
>      CASE lnRes < 0  OR lnRes > 32
>                **** Everything is OK
>      CASE lnRes = 0 
>           txt = "The operating system is out of memory or resources.".
>      CASE lnRes = 2
>           txt = "The specified file was not found".
>      CASE lnRes = 3
>           txt = "The specified path was not found.".
>      CASE lnRes = 5
>           txt = "Windows 95 only: The operating system denied access to the specified file".
>      CASE lnRes = 8 
>           txt = "Windows 95 only: There was not enough memory to complete the operation.".
>      CASE lnRes = 10
>           txt = "Wrong Windows version".
>      CASE lnRes = 11
>           txt = "The .EXE file is invalid (non-Win32 .EXE or error in .EXE image).".
>      CASE lnRes = 12
>           txt = "Application was designed for a different operating system".
>      CASE lnRes = 13
>           txt = "Application was designed for MS-DOS 4.0".
>      CASE lnRes = 15
>           txt = "Attempt to load a real-mode program".
>      CASE lnRes = 16
>           txt = "Attempt to load a second instance of  an application with non-readonly data segments".
>      CASE lnRes = 19
>           txt = "Attempt to load a compressed application file".
>      CASE lnRes = 20
>           txt = "Dynamic-link library (DLL) file failure".
>      CASE lnRes = 26
>           txt = "A sharing violation occurred.".
>      CASE lnRes = 27
>           txt = "The filename association is incomplete or invalid.".
>      CASE lnRes = 28
>           txt = "The DDE transaction could not be completed because the request timed out.".
>      CASE lnRes = 29
>           txt = "The DDE transaction failed.".
>      CASE lnRes = 30
>           txt = "The DDE transaction could not be completed because other DDE transactions were being processed.".
>      CASE lnRes = 31
>           txt = "There is no application associated with the given filename extension.".
>      CASE lnRes = 32
>           txt = "Windows 95 only: The specified dynamic-link library was not found.".
>  OTHERWISE
>           txt = "undocumented".
>ENDCASE
>IF fl_error
>   MessageBox(txt)
>ENDIF
>