Dos command xcopy to have current date - 90 days variable

i need to a .bat file to copy with xcopy command the files from a specific directory that are 90 days new. that means to take the todays date and take out 90 days of it and do not perform the copy.

help is needed,

thx

Use ROBOCOPY not XCOPY. It will do what you want very easily. Robocopy is installed on Windows 7 and is a free download for other versions.

ROBOCOPY /S /MAXAGE:90 P:\path\to\source Q:\path\to\dest

There are many other options, for minimum age, min and max size, attrributes, filtering by file and directory names, and so forth.

Also you can use the /L option to just list what it would have done, to check you have the other options right.