wix - After install different versions of my application side-by-side, uninstall one version doesn't remove shortcut from program menu. -

i created installer using wix. part of installation, 2 shortcuts (launch , uninstall) added "programmenu->mycompany->myproductname".

after install 2 versions of same application side side. tried use uninstall shortcut uninstall 1 version.

the uninstall removes files , folders version. failed remove shortcuts. , when click on uninstall again. following error shows:

"this action valid products installed"

then run uninstall other version, time both shortcuts version removed successfully. leave shortcuts failed version stuck in "programmenu->mycompany->myproductname" forever. had manually delete them.

here code use create shortcuts. did wrong?

     <directory id="programmenufolder">         <directory id="mycompanyshortcutdir" name="mycompany">           <directory id="myproductshortcutdir" name="myproduct">             <component id="cmpmyproductshortcut" guid="*">               <shortcut id="myappshortcut" name="my app" description="my application" target="[installfolder]myapp.exe" />               <removefolder id="removemycompanyshortcutdir" on="uninstall" directory="mycompanyshortcutdir" />               <registryvalue root="hkcu" key="software\my company\my product\" name="installed" type="integer" value="1" keypath="yes" />             </component>             <component id="cmpuninstall" guid="*">               <shortcut id="uninstallshortcut" name="uninstall" description="uninstall app"                 target="[system64folder]msiexec.exe" arguments="/x [productcode] /lv d:\uninstall.log " directory="myproductshortcutdir" />               <registryvalue root="hkcu" key="[software\my company\my product\" name="uninstall" type="integer" value="1" keypath="yes" />               <removefolder id="removeshortcut" on="uninstall"/>             </component>           </directory>         </directory>       </directory> 

i solved issue myself, 2 things needed:

1. change productcode *, allows side-by-side install of 2 versions.
2. make sure component guid shortcut *