When our company emails paystubs to employees' personal accounts, the .pdf file arrives as a win.dat file. We've searched for this type of problem and tried the suggested fixes (change mail settings to plain text), but that does not work. A couple of the recipients use AOL.
One of the employees who use AOL had it sent to her work address and then forwarded to her AOL account and was able to open it then, but we are trying to avoid the extra steps.
Software/Hardware used: Quick Books Payroll, Exhange Server v6.5.7