A part of script cleanup.kix is:

code:

---

  $ikey="HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders"
  IF (Exist($ikey) = 0)
    $info=$info+" user_shell_folders=("
    ;
    $ivalue=ReadValue($ikey, "Cache")
    IF ($debug_mode = "yes")
      ? "recent.user_shell_folders -> "+$ivalue+"="+ExpandEnvironmentVars($ivalue)
    ENDIF
    IF (len($ivalue) <> 0)
      shell "%comspec% /e:1024 /c deltree /y "+CHR(34)+ExpandEnvironmentVars($ivalue)+"\."+CHR(34)
      $info=$info+"-cache"
    ENDIF
    ;
    $ivalue=ReadValue($ikey, "Cookies")
    IF ($debug_mode = "yes")
      ? "recent.user_shell_folders -> "+$ivalue+"="+ExpandEnvironmentVars($ivalue)
    ENDIF
    IF (len($ivalue) <> 0)
      shell "%comspec% /e:1024 /c deltree /y "+CHR(34)+ExpandEnvironmentVars($ivalue)+"\."+CHR(34)
      $info=$info+"-cookies"
    ENDIF
    ;
    $ivalue=ReadValue($ikey, "Local Settings")
    IF ($debug_mode = "yes")
      ? "recent.user_shell_folders -> "+$ivalue+"="+ExpandEnvironmentVars($ivalue)
    ENDIF
    IF (len($ivalue) <> 0)
      shell "%comspec% /e:1024 /c deltree /y "+CHR(34)+ExpandEnvironmentVars($ivalue)+"\History\."+CHR(34)
      $info=$info+"-local.history"
    ENDIF
    IF (len($ivalue) <> 0)
      shell "%comspec% /e:1024 /c deltree /y "+CHR(34)+ExpandEnvironmentVars($ivalue)+"\Temp\."+CHR(34)
      $info=$info+"-local.temp"
    ENDIF
    IF (len($ivalue) <> 0)
      shell "%comspec% /e:1024 /c deltree /y "+CHR(34)+ExpandEnvironmentVars($ivalue)+"\Temporary Internet Files\."+CHR(34)
      $info=$info+"-local.temporary_internet_files"
    ENDIF
    ;
    $ivalue=ReadValue($ikey, "Recent")
    IF ($debug_mode = "yes")
      ? "recent.user_shell_folders -> "+$ivalue+"="+ExpandEnvironmentVars($ivalue)
    ENDIF
    IF (len($ivalue) <> 0)
      del ExpandEnvironmentVars($ivalue)+"\*.lnk"
      $info=$info+"-recent"
    ENDIF
    $info=$info+"-)"
  ENDIF

---

The shell command can be

code:

---

f.e.   shell "%comspec% /e:1024 /c deltree /y "+CHR(34)+ExpandEnvironmentVars($ivalue)+"\Temporary Internet Files\."+CHR(34)
       shell "%comspec% /e:1024 /c deltree /y c:\windows\Temporary Internet Files\."
the code CHR(34) (= "%" sign) is be used for expanding environment variable.
second example is using a fixed path specification.

---

Greetings.

btw: the deltree command looks like deltree /y pathname