Access denied running iwlockinfo from custom menu

Denise Bowker

W2K
TS 5.5.2

I'm trying to create a custom menu item to unlock locked files for authors.

My authors on occasion edit a file and don't make changes but it locks the file (and the DCR too). I have a custom menu script that unlocks the file but my authors can't run it. The return from the system command "$IWHOME\bin\iwlockinfo $file" results in "access denied". I thought custom commands ran as SYSTEM.