our customers mostly uses MS Outlook, but sometimes also other clients gives us trouble creating a new mail window from code.

we tried also to implement a mailto: alternative, but using attachment="C:\filename.txt" fails.

right clicking on a file using send to mail recepient works mostly anyway, but I never found a way to do this by code.

is there any other ways to create a new mail with an file attachment?

we also experienced that the entire application crash because of the mapi code, the windows error pretty often gives an error looking like this : 

```
Faulting module name: dhcpcsvc.DLL, version: 6.1.7600.16385, time stamp: 0x4a5bd9b5
Exception code: 0xc0000005
Fault offset: 0x00001d00
Faulting process id: 0x868
Faulting application start time: 0x01ca7fbc86a3e836
Faulting application path: C:\Program Files (x86)\Microsoft Office\OFFICE11\OUTLOOK.EXE
Faulting module path: C:\Windows\system32\dhcpcsvc.DLL
Report Id: c60fa358-ebaf-11de-8b4f-0026b9486d93

```