I have never had any problem with the zip program which comes as part of XP, and see no point in paying for another one. On the other hand I cannot get on with Windows CD writing program, and have been more than happy to pay for Nero.
I suspect it has something to do with it being bought by another company - Vector Capital - click here
"Vector has bought the firm for an undisclosed amount.
But few people bother to pay for the software once the free evaluation period is over. Users should pay $29 for a single user license. WinZip's new owners are likely to improve the firm's ability to make money out of its software"
"Licensed users of WinZip software may upgrade to 9.0 SR-1 at no charge. This license for 9.0 SR-1 is a perpetual license without further fees. However, future upgrades will not be available free of charge.
Your WinZip software single user license included a guaranteed 6-month free upgrade period. However WinZip Computing did continue to provide free upgrades after customer's free upgrade periods expired through this last version, 9.0 SR-1, but this was never guaranteed.
Unfortunately, due to development and other costs, we can no longer provide upgrades free of charge."
Your license to use the beta software will terminate the sooner of: (a) at the end of the 45 day evaluation period; or (b) at a date predetermined by WinZip Computing which date may be prior to the end of the 45 day evaluation period. Notwithstanding the above, WinZip Computing may immediately terminate this license upon written notice to you at any time and without liability of any kind."