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Unable to execute a VBScript (.vbs) from registry

Forenote:
Not a duplicate of: Unable to run vbs file from windows registry

I've just decided to write a VBScript which handles an argument. Before I start writing it, I'm testing out the argument functionality.

Currently, my script is thus:

set arg = WScript.Arguments
msgbox arg(0)

To call my script from the registry, I use:
"%windir%\system32\cscript.exe" "E:\VBScripts\Transcode & Analyse.vbs" "%1"

However, when called from the registry (through a right click context item), I am presented with an error: error

I'm not quite sure why this error could occur, so any help would be appreciated!

Additional information:
When called from Command Prompt, it functions as intended - with the argument displayed in the messagebox, and no text on the titlebar.

Solution

  • Described error message occurs in case of misusing RegKey data type declared (REG_SZ) versus data type saved (REG_EXPAND_SZ):

    ==> reg query HKEY_CLASSES_ROOT\*\shell\T-and-A\command

HKEY_CLASSES_ROOT\*\shell\T-and-A\command
    (Default)   REG_SZ    "%windir%\system32\cscript.exe" "E:\VBScripts\Transcode & Analyse.vbs" "%1"

    You need to use either expanded path 

    HKEY_CLASSES_ROOT\*\shell\T-and-A\command
    (Default)   REG_SZ    "C:\Windows\System32\cscript.exe" "E:\VBScripts\Transcode & Analyse.vbs" "%1"

    or change RegKey data type to REG_EXPAND_SZ as follows:

    HKEY_CLASSES_ROOT\*\shell\T-and-A\command
    (Default)    REG_EXPAND_SZ    "%windir%\system32\cscript.exe" "E:\VBScripts\Transcode & Analyse.vbs" "%1"

    Read in reg add /? or reg.exe: Read, Set or Delete registry keys and values how to change value of empty name (Default) for the key to REG_EXPAND_SZ data type.

    Please use your current key name instead of T-and-A in above examples.