Is Macromedia Flash Player installed

Author: sunjammer (talk, contrib)

Description

This function detects if Macromedia Flash is installed in the user's computer.

Edit: To be able to handle if Flash was installed and the un-installed needed to get value from InprocServer32 and see if the file exists as an uninstall leaves behind the registry entry but removes the files.

 Caramel 17:25, 21 November 2007 (PST)

Also see: Get Macromedia Flash version

The Function

 ; IsFlashInstalled
 ;
 ; By Yazno (edit Caramel)
 ; Returns on top of stack
 ; 0 (Flash is not installed)
 ; or
 ; 1 (Flash is installed)
 ;
 ; Usage:
 ;   Call IsFlashInstalled
 ;   Pop $R0
 ;   ; $R0 at this point is "1" or "0"
 
 Function IsFlashInstalled
  Push $R0
  ClearErrors
  ReadRegStr $R0 HKCR "CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}\InprocServer32" ""
  IfErrors lbl_na
    IfFileExists $R0 0 lbl_na
      StrCpy $R0 1
  Goto lbl_end
  lbl_na:
    StrCpy $R0 0
  lbl_end:
  Exch $R0
 FunctionEnd