Function to Check if a DLL in the System is older than you needs

Author: KiKoLo (talk, contrib)

Description

This Function Checks the version of the dll, and if the version is lesser than you require, it returns the segment:

• if the installed is equal or newer, returns 0
• if the installed is older:
  • if the major version is lesser it returns 1
  • if the minor version is lesser it returns 2
  • if the revision version is lesser it returns 3
  • if the rebuild version is lesser it returns 4

See You

KiKoLo

The Function

;
; FCheckVersion
;
; Check a Dll and informs if is older than the program need.
;
; Usage:
;    ...
;    Push "2300"                    ;Rebuild
;    Push "4817"                    ;Revision
;    Push "81"                      ;Minor
;    Push "5"                       ;Mayor
;    Push "$SYSDIR\comctl32b.dll"   ;DLLFullPath
;    Call FCheckVersion
;       Pop $R0
;    IntCmp $R0 0 +3 +3
;    MessageBox MB_YESNO|MB_ICONSTOP|MB_TOPMOST|MB_DEFBUTTON2 "Error!!! $\nContinue?" IDYES +2
;    Quit
;    ...
;
 
Function FCheckVersion
   Pop $1 ;DLLFullPath
   Pop $2 ;Mayor
   Pop $3 ;Minor
   Pop $4 ;Revision
   Pop $5 ;Rebuild
 
 
   GetDllVersion "$1" $R0 $R1
   IntOp $R2 $R0 / 0x00010000
   IntOp $R3 $R0 & 0x0000FFFF
   IntOp $R4 $R1 / 0x00010000
   IntOp $R5 $R1 & 0x0000FFFF
 
   StrCpy $0 "0"
 
   IntCmp $2 $R2 +1 lbl_exit lbl_mayor
   IntCmp $3 $R3 +1 lbl_exit lbl_minor
   IntCmp $4 $R4 +1 lbl_exit lbl_revision
   IntCmp $5 $R5 lbl_exit lbl_exit lbl_rebuild
 
   lbl_rebuild:    IntOp $0 $0 + 1
   lbl_revision:   IntOp $0 $0 + 1
   lbl_minor:      IntOp $0 $0 + 1
   lbl_mayor:      IntOp $0 $0 + 1
   lbl_exit:       Push $0
 
   ClearErrors
 
FunctionEnd