@ptrex  I try again on window7 with this modified manifest file where Autoit is not installed using vbscript. It's still not working getting error: Library not registered  Procedure: 1) Create C:\Temp folder 2) Copy all 3 file  > AutoItX3.dll  > AutoItX3.sxs.manifest  > Test.vbs AutoItX3.sxs.manifest <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">     <as