The error occurred while calling Adobe through IIS to convert an Excel file to a PDF file

Question

Windows Server 2019, the web app is deployed on IIS. A button on the screen is bound to a VBS script that calls Adobe PDF Printer to print an Excel file to a PS file, and then print it to a pdf file. It occasionally works the first time it is called. However, the second time it is called, an issue occurs when printing the Excel file to a PS file. The code is xlBook.PrintOut(, , , , "Adobe PDF" , True, , "E:\test.ps").