MOSS: Cannot set "Modified", "Modified By", "Created" and "Created by" fields in the publishing pages list without changing version?

Question

Hello everyone,
I've got the task to programmatically import data to a moss web by add publishing pages to the pages-library with enabled moderation and major/minor-versioning.
This is not really difficult but the main issue is to set the values for the fields "Created", "Created by", "Modified" and "Modified by".
Also this is not relly difficult. By setting the internal field-properties "Author" for Created by and "Editor" for Modified by there values are set.
But the main problem now is, that I have to approve the publish page. After that, the value of the "Modified"-Field is change to the current datetime which is not acceptable.
If I redo an updating of the listitem, the file-version is increased to 1.1 which is also not acceptable. I do this by .UpdateOverwriteVersion(), which MSDN says of that it doesn't increase the version but indeed it does.
Following an example code of my approach:
using (SPSite spSite = new SPSite(SiteCollectionURL))
using (SPWeb spWeb = spSite.OpenWeb())
PublishingWeb publishingWeb = PublishingWeb.GetPublishingWeb(spWeb);
PageLayout[] layouts = publishingWeb.GetAvailablePageLayouts(<Guid of my pageLayout>);
if (layouts != null && layouts.Length > 0)
PageLayout layout = layouts[0];
PublishingPage newPage;
// add new publishing page
newPage = publishingWeb.GetPublishingPages(0).Add("test.aspx", layout);
newPage.Title = "testpage";
newPage.ListItem[SPBuiltInFieldId.Comments] = "test comment";
newPage.Update();
newPage.CheckIn("Checked in programmatically");
SPListItem tmpListItem = publishingWeb.PagesList.GetItemById(newPage.ListItem.ID);
string creationDate = "2009-11-05T22:35:10Z";
string modifyDate = "2009-11-06T22:35:10Z";
tmpListItem["Author"] = "1;#User 1";
tmpListItem["Editor"] = "2;#User 2";
tmpListItem["Created"] = creationDate;
tmpListItem["Modified"] = modifyDate;
tmpListItem.UpdateOverwriteVersion();
// data is now alright set, now approve
tmpListItem.File.Approve("Approve test");
// publishingpage is now approved but modified-date has changed, try to reset data
SPListItem updItem = spWeb.GetList(spWeb.Url + "/Pages").GetItemById(tmpListItem.ID);
updItem["Author"] = "1;#User 1";
updItem["Editor"] = "2;#User 2";
updItem["Created"] = creationDate;
updItem["Modified"] = modifyDate;
tmpListItem.UpdateOverwriteVersion();
// now all four values are correct but now version is 1.1 and approval status 'draft' again
Also updating the listitem by ProcessBatchData doesn't do it becaue I couldn't successfully update the author/editor-fields.
Do you have any working ideas or hints for me?
Greetings from Germany,
LoneSurvivor

Answer 1

I think iv cracked it...
Coppied straight from my code so the variable names dont match but the principal is there...
$dstfile.ListItemAllFields["Author"] = ($author.ID.ToString() + ";#" + $author.LoginName)
$dstfile.ListItemAllFields["Editor"] = ($modifier.ID.ToString() + ";#" + $modifier.LoginName)
$dstfile.ListItemAllFields["Created"] = $srcfile.TimeCreated.ToLocalTime()
$dstfile.ListItemAllFields["Modified"] = $last.ToLocalTime()
# changes to editor have to be done by Update or UpdateOverwriteVersion
$dstfile.ListItemAllFields.UpdateOverwriteVersion()
if ($file.Level -eq "Published") {
# publish not needed and overwrites 'Editor' so dont use
# $dstfile.Publish($file.CheckInComment)
# use .Approve() which updates the major minor versions too
$dstfile.Approve($file.CheckInComment)
# approve changes the dates so correct here
$dstfile.ListItemAllFields["Created"] = $srcfile.TimeCreated.ToLocalTime()
$dstfile.ListItemAllFields["Modified"] = $last.ToLocalTime()
$dstfile.ListItemAllFields.SystemUpdate()