Thank you for the sugestions. Making the following changes it works perfect:
000008 call-convention 66 is winapi. *> 74 does not link
CALL winapi "ShellExecuteA" using *> the quptation and A is necesary
* Z"C:\Program Files\Microsoft Office 15\root\office15\" can be replaced by
by value 0 size 4 *> sin path
* by value SW-hide I replaced by value 7
by value 7 *>CmdShow
Thanks for the help
Rolf