Provide string manipulation using WF variables

Hi, Does anyone has ever tried to use theese actions with WF variable? I just can't make it work. It recognizes the WF variables itsefl as strings and not as variables.   What am i missing?   Than...

Id #5681 | Release: None | Updated: Mar 20, 2013 at 11:19 PM by AprilDrake | Created: Sep 29, 2009 at 9:25 PM by caribe80

UserID functions

Get the domain of the current user: GetUserDomain() Get the "simple" user ID of the user (i.e. not including the domain).  GetSimpleUserId()   These return the user ID of the person that started th...

Id #948 | Release: V1.2 | Updated: Feb 14, 2013 at 2:28 AM by stensland | Created: Jan 18, 2008 at 11:35 PM by pagalvin

Provide simple interface to regular expressions

Id #947 | Release: V1.2 | Updated: Mar 20, 2013 at 11:19 PM by AprilDrake | Created: Jan 18, 2008 at 6:03 PM by pagalvin

Item level security

Enable item level security changes via a workflow.

Id #945 | Release: V1.2 | Updated: Feb 14, 2013 at 2:28 AM by pagalvin | Created: Jan 18, 2008 at 4:16 PM by pagalvin

UrlDecode

Add UrlDecode() function.

Id #944 | Release: V1.2 | Updated: Feb 14, 2013 at 2:28 AM by pagalvin | Created: Jan 18, 2008 at 4:15 PM by pagalvin

UrlEncode

Provide UrlEncode string function.

Id #943 | Release: V1.2 | Updated: Mar 20, 2013 at 11:19 PM by AprilDrake | Created: Jan 18, 2008 at 4:15 PM by pagalvin

Call web service of known signature

Enable SPD workflow to invoke a web service given a known signature.

Id #942 | Release: V1.2 | Updated: Feb 14, 2013 at 2:28 AM by montemcd | Created: Jan 18, 2008 at 4:14 PM by pagalvin

Provide an email validation function.

Provide an email validation action (in response to a user request).

Id #940 | Release: V1.2 | Updated: Feb 14, 2013 at 2:28 AM by brigjevi | Created: Jan 18, 2008 at 4:07 PM by pagalvin

.actions file uses wrong "DesignerType"

See here for an explanation:   http://paulgalvin.spaces.live.com/blog/cns!1CC1EDB3DAA9B8AA!411.entry

Id #313 | Release: V1.1 | Updated: Jun 14, 2013 at 6:51 AM by pagalvin | Created: Nov 28, 2007 at 11:13 PM by pagalvin

Implement function: Days/Weeks/Months between two dates

Given 2 days, return back number of days/weeks/months between them.   May as well return seconds/minutes/hours and even years and maybe milliseconds?

Id #76 | Release: V1.2 | Updated: Feb 14, 2013 at 2:28 AM by pagalvin | Created: Nov 10, 2007 at 1:59 AM by pagalvin