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Best Way To Troubleshoot Installation Error 2738

Kian ChandlerDecember 31, 2021January 25, 2022

Hopefully if you have an error installing patch 2738 on your system, this guide can help you.

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This message indicates why the VBScript engine is not currently built on the machine running the technology. Vbscript. dll must be registered to resolve the issue.

When trying to install a program using the Windows Installer package (installer.msi), you may encounter errors 2738 or 2739 and find that the installation fails.

Errors 2738, 2739 appear when Windows uses custom Windows Script Installer actions (.vbs or .js only) and the VBScript runtime or perhaps JScript is not frequently registered on the computer.

Error code	Description
2738	Unable to access VBScript Runtime for Custom Action
2739	Unable to access JScript Runtime for Activity and Culture

As mentioned above, if the installer fails to run JScript / VBScripts as VBScript / JScript, the above errors occur, sites will not work as expected. The most likely cause is antivirus software that is tryingIt will connect to the script engine and block scripts from running. Instance,

For McAfee, the antivirus software replaces the specific vbscript.dll reference in the registry in its DLL version (specific suffix may vary) below:

 C:  Program Files  Common Files  McAfee  SystemCore  ScriptSn.20110222204811.dll

Resolution

Windows 10 And Windows 8, Windows And 7 Earlier

To improve the next steps to recover from errors 2738 and / or 2739, download Roam and the associated recording contract using – Download vbscript_jscript_2738_2739_fix.zip

To manually fix all Vbscript 2738 and / or JScript 2739 errors:

(You can create a system restore point or take a full computer backup before proceeding.)

VBScript Error Fix The 2738

Start Registry Editor ( regedit.exe ).

Go to the fanbase branch:

 HKEY_LOCAL_MACHINE  SOFTWARE  Classes  CLSID  B54F3741-5B07-11cf-A4B0-00AA004A55E8  InprocServer32

Double click in the right pane (default) and configure the data:
```
 C:  Windows  System32  vbscript.dll 
```

If you are using 64-bit Windows, you can also access the following key:

 HKEY_LOCAL_MACHINE  SOFTWARE  Classes  Wow6432Node  CLSID  B54F3741-5B07-11cf-A4B0-00AA004A55E8  InprocServer32

In this special area on the right, double click (default) and set the data to:
```
 C:  Windows  SysWOW64  vbscript.dll 
```

Use the following methods (if applicable) in HKEY_CURRENT_USER

 HKEY_CURRENT_USER  SOFTWARE  Classes  CLSID  B54F3741-5B07-11cf-A4B0-00AA004A55E8HKEY_CURRENT_USER  SOFTWARE  Classes  Wow6432Node  CLSID  B54F3741-5B07-11cf-A4B0-00AA004A55E8

Remove all people most associated with the above keys.
Close the registry editor. For

JScript error 2739 fixed

Start Registry Editor ( regedit.exe ).
Go to the following branch:
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 HKEY_LOCAL_MACHINE  SOFTWARE  Classes  CLSID  f414c260-6ac0-11cf-b6d1-00aa00bbbb58  InprocServer32

Double click in the right pane (default) and align the data:

 C:  Windows  System32  jscript.dll

If you are using 64-bit Windows, also use the following key:

 HKEY_LOCAL_MACHINE  SOFTWARE  Classes  Wow6432Node  CLSID  f414c260-6ac0-11cf-b6d1-00aa00bbbb58  InprocServer32

Double click in the right pane okto (default) and set history to:

 C:  Windows  SysWOW64  jscript.dll

Access the following practical knowledge (if any) at HKEY_CURRENT_USER

 HKEY_CURRENT_USER  SOFTWARE  Classes  CLSID  f414c260-6ac0-11cf-b6d1-00aa00bbbb58HKEY_CURRENT_USER  SOFTWARE  Classes  Wow6432Node  CLSID  f414c260-6ac0-11cf-b6d1-00aa00bbbb58

Remove all people associated with the above keys if there are many.

Close the registry editor.

Alternative Method For Windows 7, Vista And Earlier

An open and great elevated command prompt. To do this, click on "Start", "All Programs", "Accessories", right-click on "Command Prompt" and select "Run as administrator".
Run the when commands individually and click the :
```
 regsvr32 vbscript.dll entry after each line.regsvr32 jscript.dll 
```
For 64-bit editions of Windows, they only run two additional commands:
```
 c:  windows  syswow64  regsvr32.exe vbscript.dllc:  windows  syswow64  regsvr32.exe jscript.dll 
```
You should really see the name of the DllRegisterServer output file in .dll for every production command. If you get an error 0-80004005 this is probably because you are trying to register DLLs from a normal (non-elevated) command prompt window.
Enter exit to close the main command prompt window.

The Regsvr32.exe structure does not delete the redundant HKCU registry key. This method doesn't make things easy, just follow the method for editing the registry that we talked about earlier.

Technical explanation of errors 2738 or 2739

For security reasons, Windows Installer does not load the kernel script specified in HKEY_CURRENT_USER. As a writable function, a standard user can get some kind of elevated setup to mask their variant as a scripting engine in case the custom action has not been explicitly assigned using msidbCustomActionTypeNoImpersonate (0x0800). This could be a privilege escalation attack; Hence, Windows will return error 2738 or 2739 for custom actions, enter 6 or 5 respectively, and return Windows error 1603, ERROR_INSTALL_FAILURE.

Make sure vbscript.dll and jscript.dll are not registered in HKEY_CURRENT_USER (HKCU), etc.Check the Windows registry keys of your computer below.

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About the author

Ramesh Srinivasan is passionate about Microsoft technology and even won the Microsoft Valuable Most People Professional award in the Windows Shell / Desktop Experience category ten times in a row from 2003 to the following year. He loves to fix bugs and write Windows.Ramesh founded Winhelponline.com in 2005.

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