Read the latest about X1 from fellow users and X1's support team at the X1 Support Forums. What is the current version of X1 Professional Client?
The current version is v6.2.1 (Build 3618 ). You can check your version number by going to the Help Menu and clicking on About X1.

How do I upgrade to the latest build?
If you have purchased the client before, log into your Support Portal account and click on the appropriate upgrade link. All advanced features will continue to be available to you after upgrade.

Can I use X1 Professional Client with my AOL, Yahoo!®, Hotmail®, or other web-based email account?
Yes and no. There are several versions of X1 Professional Client and they work with the most popular email programs available today (Outlook, Outlook Express, Lotus Notes, Eudora, Netscape, Mozilla and Thunderbird). If your email account allows you to use one of these programs to access your mail, then the version of X1 Professional Client designed for that program will be able to scan and index the mail. Usually this access is done through a POP setting. Please contact the customer service department of your web-based email account for help in using one of these programs with their service.

Please note that X1 Professional Client does not currently support IMAP and Hotmail.

Is X1 Professional Client available for the Mac® or Linux®?
No. At this time, X1 Professional Client only works on the Windows platform.

Can I use X1 Professional Client to search my USB, Flash, or other removable drive?
Removable media (CD ROM, USB, DVD, etc.) are not yet supported by X1.

What are all of these results? I don't see any relationship to the search terms I entered.
X1 Professional Client indexes the content of your email, files, attachments, and Outlook contacts. When you start entering a search term, we find all instances of those terms within the documents and files that have been indexed. Because of this, you may not immediately see how a file or document relates to your term.

If you select the file from the list on the left, a preview of the document will appear in the window on the right with the search term(s) highlighted. Take a closer look, and you will quickly find that the file contains the search term(s) you entered.

X1 Professional Client also indexes file attributes (file name, subject, etc.). X1 Professional Client will include attributes in its search results. So the results you see may not have the search term in the content of the file but in one of the file's attributes. Check the columns at the top of the left pane for highlighted hits.

What changes were made in the latest version?
We provide a list of the major changes, bug fixes, and known issues for each version of X1 Professional Client. You will find these on our Release Notes page at http://www.x1.com/support/release_notes.html.

Who do I talk to about corporate deployments?
X1 Sales can be reached through the web or by phone from http://www.x1.com/products/sales.html

What file types can the X1 Professional Client display?
We currently support over 400 different file types for previewing. For a detailed list please visit http://www.x1.com/products/viewable_file_formats.html

Is X1 Professional Client compatible with Windows Outlook 2007, Office 2007, and Vista?
The X1 Professional Client is compatible with Office Standard 2007 documents and the Outlook 2007 email client. It will both extract and preview content of the new file formats for Word, Excel, and PowerPoint. Also, not only does X1 work with Windows Vista, but we have worked with Microsoft to have our product officially "Certified for Windows Vista".