Executable Script

I have created a batch file to help automate the compression of files that I want to backup. The batch file calls the WinZip command line to create the zip file. I want to be able to have a windows dialog box appear prior to running the compression to ask if I want to do it now or postpone till later. But am not sure how to proceed. Suggestions and code would be appreciated. Am running Win2k. ( Possibly use vbscript then call batch file )