How do I run a VBScript in 32-bit mode on a 64-bit machine

Question

I have a text file that ends with  vbs that I have written the following in   Set Conn   CreateObject  ADODB Connection   Conn Provider    Microsoft ACE OLEDB 12 0  Conn Properties  Data Source      C  dummy accdb  Conn Properties  Jet OLEDB Database Password      pass  Conn Open Conn Close Set Conn   Nothing    When I execute this on a Windows 32-bit machine it runs and ends without any notion  expected    When I execute this on a Windows 64-bit machine it gets the error      Provider cannot be found  It may not be properly installed     But it is installed  I think the root of the problem is that the provider is a 32-bit provider  as far as I know it doesn t exist as 64-bit   If I run the VBScript through IIS on my 64-bit machine  as a ASP file  I can select that it should run in 32-bit mode  It can then find the provider   How can I make it find the provider on Windows 64-bit  Can I tell CScript  which executes the  vbs text file  to run in 32-bit mode somehow

User · Answer

In the launcher script you can force it  it permits to keep the same script and same launcher for both architecture     For 32 bits architecture  this line is sufficent  32bits is the only cscript available  set CSCRIPT  cscript exe     Detect windows 64bits and use the expected cscript  SysWOW64 contains 32bits executable  if exist  C  Windows SysWOW64 cscript exe  set CSCRIPT  C  Windows SysWOW64 cscript exe   CSCRIPT  yourscript vbs

User · Answer

64bit check                           check to see if we are on 64bit OS - gt  re-run this script with 32bit cscript    Function RestartWithCScript32 extraargs     Dim strCMD  iCount    strCMD   r32wShell ExpandEnvironmentStrings   SYSTEMROOT     amp    SysWOW64 cscript exe     If NOT r32fso FileExists strCMD  Then strCMD    cscript exe    This may not work if we can t find the SysWOW64 Version    strCMD   strCMD  amp  Chr 32   amp  Wscript ScriptFullName  amp  Chr 32     If Wscript Arguments Count  gt  0 Then     For iCount   0 To WScript Arguments Count - 1      if Instr Wscript Arguments iCount          0 Then   add unspaced args       strCMD   strCMD  amp       amp  Wscript Arguments iCount   amp           Else       If Instr   -    Left Wscript Arguments iCount   1    gt  0 Then   quote spaced args        If InStr WScript Arguments iCount        gt  0 Then         strCMD   strCMD  amp       amp  Left Wscript Arguments iCount   Instr Wscript Arguments iCount           amp        amp  Mid Wscript Arguments iCount   Instr Wscript Arguments iCount          1   amp               ElseIf Instr WScript Arguments iCount        gt  0 Then         strCMD   strCMD  amp       amp  Left Wscript Arguments iCount   Instr Wscript Arguments iCount           amp        amp  Mid Wscript Arguments iCount   Instr Wscript Arguments iCount          1   amp               Else         strCMD   strCMD  amp         amp  Wscript Arguments iCount   amp               End If       Else        strCMD   strCMD  amp         amp  Wscript Arguments iCount   amp              End If      End If     Next    End If    r32wShell Run strCMD  amp       amp  extraargs  0  False    End Function     Dim r32wShell  r32env1  r32env2  r32iCount    Dim r32fso    SET r32fso   CreateObject  Scripting FileSystemObject      Set r32wShell   WScript CreateObject  WScript Shell      r32env1   r32wShell ExpandEnvironmentStrings   PROCESSOR ARCHITECTURE       If r32env1  lt  gt   x86  Then   not running in x86 mode     For r32iCount   0 To WScript Arguments Count - 1      r32env2   r32env2  amp  WScript Arguments r32iCount   amp  VbCrLf     Next     If InStr r32env2  restart32     0 Then RestartWithCScript32  restart32  Else MsgBox  Cannot find 32bit version of cscript exe or unknown OS type    amp  r32env1     Set r32wShell   Nothing     WScript Quit    End If    Set r32wShell   Nothing    Set r32fso   Nothing                                   END 64bit check                            Place the above code at the beginning of your script and the subsequent code will run in 32bit mode with access to the 32bit ODBC drivers  Source

User · Answer

We can force vbscript always run with 32 bit mode by changing  system32  to  sysWOW64  in default value of key  Computer HKLM SOFTWARE  Classes VBSFile Shell Open Command

User · Answer

follow http   support microsoft com kb 896456  To start a 32-bit command prompt  follow these steps     Click Start  click Run  type  windir  SysWoW64 cmd exe  and then click OK    Then type  cscript vbscriptfile vbs

User · Answer

Alternate method to run 32-bit scripts on 64-bit machine   windir  syswow64 cscript exe vbscriptfile vbs

User · Answer

WScript exe exists in two versions  one in C  Windows System32  and the other in C  Windows SysWOW64  directories  They run respectively in 64 bits and 32 bits  against immediate logic but true    You may add the following code at the beginning of your script so that it automatically starts again in 32 bits if it detects that it s called in 64 bits   Note that it transmits the arguments if it calls itself to switch to 64 bits     C  Windows System32 WScript exe   WScript exe Dim ScriptHost   ScriptHost   Mid WScript FullName  InStrRev WScript FullName         1  Len WScript FullName    Dim oWs   Set oWs   CreateObject  WScript Shell   Dim oProcEnv   Set oProcEnv   oWs Environment  Process      Am I running 64-bit version of WScript exe Cscript exe  So  call script again in x86 script host and then exit  If InStr LCase WScript FullName   LCase oProcEnv  windir    amp    System32     And oProcEnv  PROCESSOR ARCHITECTURE      AMD64  Then       rebuild arguments     If Not WScript Arguments Count   0 Then         Dim sArg  Arg         sArg              For Each Arg In Wscript Arguments               sArg   sArg  amp       amp        amp  Arg  amp               Next     End If      Dim sCmd   sCmd         amp   oProcEnv  windir    amp    SysWOW64    amp  ScriptHost  amp        amp         amp  WScript ScriptFullName  amp        amp  sArg      WScript Echo  Call    amp  sCmd     oWs Run sCmd     WScript Quit End If

User · Answer

If you have control over running the cscript executable then run the X  windows syswow64 cscript exe version which is the 32bit implementation

[vbscript] How do I run a VBScript in 32-bit mode on a 64-bit machine?

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