Go to http://www.NineChime.com/Junk/pu/ and download Win2K_PU_Patch.zip . Information:
This patch emulates key Win98 memory allocation under Windows 2000 and XP, allowing Porsche Unleashed to run properly. Supposedly, this patch will work on all Win2000/WinXP systems, though for Win2000 you might need a recent service pack installed (like SP2 or SP3). Go to http://windowsupdate.microsoft.com to download any needed service packs.
If you have performance problems under WinXP, try turning off Win98 compatibility mode and install this patch. You can always uninstall it.
This zip file contains four files: "PatchInstall.bat", "PatchUninstall.bat", "PU_Patch.sdb", and "Readme.txt". Unzip them to a temp folder on your desktop. To apply the patch, just run PatchInstall.bat. To remove the patch, run PatchUninstall.bat. If for some dumb reason Windows can't find "sdbinst.exe", it should be in your Windows/system folder. Do a search for it and copy it to your temp folder if needed. That should be it!
NEVER delete "gimme.dll". It is a memory manager. Deleting it will cause more problems than it solves. Also, do not resize your swap file. This patch is a proper fix for gimme.dll.