Finally, Matrox has released version 9.0 of their MIL-Lite imaging library. Finally – because it is the first version with Vista support, and as most people know, Microsoft has ended selling Windows XP. I have got a hand of a beta version and installed it today. Up to now I have had to use a second computer with Windows XP to debug and run the applications. More on that at another time.
Anyway, as the application also use DAC boards from Computerboards (now Measurement Computing), I needed to instasll their Vista-compatible InstaCal driver too. Their drivers always work ok, so I was surprised when the installation repeatedly stopped with the error “Error 2738: Could not access VBScript run time for custom action”. After searching the Measurement Computing forums , I went to google and it turned out that this error stems from vbscript.dll not being registered. How on earth that windows component did get unregistered I do not know, but this procedure fixed the problem:
1. Run Command Prompt as administrator
1.1 Start Menu -> All Programs -> Accessories
1.2 Right click on Command Prompt and select Run as administrator
2. Type cd c:\windows\system32 into the Command Prompt and hit Enter
3. Type regsvr32 vbscript.dll into the Command Prompt and hit Enter
Jon's Techbits 
Thank U very much, ur info helped me.
If you are running Vista 64 bit, you might want to run c:\windows\syswow64\regsvr32 vbscript.dll instead of system32.. 🙂
thank you it worked out
THANKS IT WORKS..
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